would a chi-square test based on a 2 ✕ 2 table using a level of 0.05 be statistically significant?chi-square statistic = 11.2a) Yes, because 11.2 > 0.05.b) Yes, because 11.2 > 3.84. c) No, because 11.2 > 3.84.d) No, because 11.2 > 0.05.

What type of survey was used during the data collection process? .This question is important because it helps the researcher understand the methodology employed

This can impact the data's accuracy and relevance for their specific research needs. Additionally, knowing the survey type can help assess any potential biases or limitations in the collected data.

A marketing researcher should ask questions such as: who collected the data, what methodology was used in the data collection process, what sources were used to obtain the data, what was the sample size and composition, how recent is the data, and how was the data analyzed and presented.

It is important to determine the credibility and accuracy of the data sources and the survey methodology used in order to establish the reliability of the secondary data in the international arena. The cost of the data should not be the primary concern when evaluating the reliability of the data sources.

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The actual area in square feet of the base of the building given the scale model will be; 418 square feet.

Since scale drawing is a reduced form in the dimensions of an original image / building / object.

Therefore, Scale of the drawing = original dimensions / dimensions of the scale drawing

Length of the base = 2 x 47 = 94 ft

Width of the base = 1 x 47 = 47

Area = 47 x 94 = 4418 square feet

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The solution to the equation 4⁽⁻ˣ ⁺ ¹⁾ = 2²ˣ is x = 1/2.

Given the equation in the question:

4⁽⁻ˣ ⁺ ¹⁾ = 2²ˣ

To solve the equation 4⁽⁻ˣ ⁺ ¹⁾ = 2²ˣ using the equal base method, we can rewrite the right side with base 4, since 4 is a power of 2:

4⁽⁻ˣ ⁺ ¹⁾ = 2²ˣ

2²⁽⁻ˣ ⁺ ¹⁾ = 2²ˣ

Now both sides have the same base, so we can equate their exponents and solve for x:

2( -x + 1 ) = 2x

-2x + 2 = 2x

2x + 2x = 2

4x = 2

x = 1/2

Therefore, the value of x is 1/2.

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Answer:748cm^2

Step-by-step explanation:

The producer surplus at the equilibrium point (1600, 80) is $64,000.

In order to calculate the producer surplus, we first need to find the equilibrium price and quantity, which you have already determined as (1600, 80). Now, let's find the supply function, S(x), and the price at which quantity supplied is zero.
You've provided the supply function as "p = S(x) 25 V", but it seems to have some typos. Assuming the correct supply function is p = 25x, let's proceed.
Set the supply function, p = 25x, equal to 0:
0 = 25x
x = 0
Now we have the points (0, 0) and (1600, 80) to calculate the producer surplus. Producer surplus is represented by the area of a triangle. The base of the triangle is the equilibrium quantity (1600), and the height is the equilibrium price (80).
Use the formula for the area of a triangle: Area = (1/2) * base * height
Producer Surplus = (1/2) * 1600 * 80
Producer Surplus = 0.5 * 128000
Producer Surplus = 64,000

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Answer:

woman,man,woman,man,woman,man,woman,man,woman,man,man,man,man

Step-by-step explanation:

too easy

To answer this question, we'll use the range rule of thumb for unusual values. The range rule of thumb states that an outcome is considered unusual if it falls more than 2 standard deviations away from the mean.

Step 1: Calculate the probability of guessing a question correctly.
Since each question has 5 possible answers, the probability of guessing correctly is 1/5 or 0.20.

Step 2: Find the mean and standard deviation for the binomial distribution.
Mean (μ) = n * p, where n is the number of questions (20) and p is the probability of guessing correctly (0.20).
μ = 20 * 0.20 = 4

Standard deviation (σ) = √(n * p * q), where q is the probability of guessing incorrectly (1 - p).
σ = √(20 * 0.20 * 0.80) ≈ 1.79

Step 3: Determine the unusual range.
Using the range rule of thumb, we consider values unusual if they are more than 2 standard deviations away from the mean.
Unusual range = μ ± 2σ
Lower limit: 4 - 2 * 1.79 ≈ 0.42
Upper limit: 4 + 2 * 1.79 ≈ 7.58

Since we're looking for the number of questions correct by guessing alone, we round the upper limit to the nearest whole number: 8.

So, it would be unusual to get 8 or more questions correct by guessing alone on a 20-question test with 5 possible answers for each question.

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Step-by-step explanation:

Volume = area of end   x   height

            = pi r^2   x 8

           = pi  2^2 * 8    = 32 pi  units^3    <====exact answer

By substituting the equations for x and y into the equation z = x + y, simplifying the expression, and solving for z in terms of a, it can be demonstrated that the two equations demonstrate that z = x + y.

To prove that the two equations show that z = x + y, we need to perform the following steps:

Substitute the given equations for x and y in the equation z = x + y:

z = (2a + 3b) + (4a - 5b)

Simplify the right-hand side of the equation by combining like terms:

z = 6a - 2b

Substitute the value of b in terms of a from the equation 2a + 3b = 7:

2a + 3b = 7

3b = 7 - 2a

b = (7 - 2a)/3

Substitute the value of b in terms of an into the equation z = 6a - 2b:

z = 6a - 2((7 - 2a)/3)

Simplify the expression by combining like terms and solving for z:

z = (12a - 14)/3

z = 4a - 4.67

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Answer:

To solve for P(A[B), we can use Bayes' theorem, which states that P(A[B) = P(A^B) / P(B). Using the information given, we know that P(A^B') = ², which means that P(B') = 1 - P(B) = 1 - 3 = 2. Therefore, we can also find that P(A^B) = P(B) - P(B^A') = 3 - ² = ². Finally, we can plug these values into Bayes' theorem to get P(A[B) = ² / 3.

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2/3 is answer

The length of the hypotenuse is 9.5 kilometers

From the question, we have the following parameters that can be used in our computation:

Legs = 8,5 and 4.2

The length of the hypotenuse is calculated as

Hyp^2 = Leg 1^2 + Leg 2^2

substitute the known values in the above equation, so, we have the following representation

Hypotenuse^2 = (8.5)^2 + 4.2^2

Evaluate

Hypotenuse^2 = 89.89

So, we have

Hypotenuse = 9.5

Hence, the hypotenuse = 9.5

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The surface area of the composite figure is 753 square meters.

To find the surface area of the composite figure, we need to find the total surface area of the rectangular prism and then subtract the surface area of the rectangular pyramid-shaped hole.

The rectangular prism has a length of 9 meters, width of 15 meters, and height of 7 meters, so its total surface area is:

2(9 x 15) + 2(9 x 7) + 2(15 x 7) = 270 + 126 + 210 = 606 square meters

To find the surface area of the rectangular pyramid-shaped hole, we first need to find the area of the triangle that forms its base. The base of the triangle is 6 meters and the height can be found using the Pythagorean theorem:

a² + b² = c²

where a = 3 (half the base), b = 5 (the slant height), and c is the height of the triangle.

Solving for c:

c² = 5²-3²

c² = 25-9

c = √16=4

So the height of the triangle is 4 meters. Therefore, the area of the triangle is:

(1/2) x base x height = (1/2) x 6 x 4 = 12 square meters

The rectangular pyramid-shaped hole has 2 triangular faces and a rectangular 3 base, so its surface area is:

= 3(5*15) - 12*2
= 117

The total surface area of the composite solid,
= 606 + 117 = 753 square meters

Therefore, the surface area of the composite figure is 753 square meters.

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Answer:

When a coin is tossed 9 times the probability of getting exactly six heads is obtained with the help of Bernoulli trials. The probability of getting exactly six heads is 21/128.

The following which could not be the coordinates of one of its other vertices is (1, -5).

Given that,

Rectangle has side lengths of 3 and 4.

One of the vertices = (1, 2).

We have to find the other coordinates of the vertex.

The distance from the other vertex to this vertex needs to be either 3 or 4.

Find the distance using the distance formula.

A. (-3, -1) from (1, 2)

Distance = √(1 + 3)² + (2 + 1)² = √25 = 5

B. (1, -5) from (1, 2)

Distance = √(1 - 1)² + (2 - -5)² = √49 = 7

C. (5, -1) from (1, 2)

Distance = √(1 - 5)² + (2 - -1)² = √25 = 5

D. (-2, 6) from (1, 2)

Distance = √(1 - -2)² + (2 - 6)² = √25 = 5

Hence the coordinate which cannot be the other vertex is (1, -5).

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Answer: 15

Step-by-step explanation:

Area of a parallelogram is base times height

A=bh       b, base=5   h, height=3

A=(5)(3)  =15 [tex]m^{2}[/tex]

To use Holt's method with smoothing constants of 0.3 for alpha and 0.6 for gamma, we first need to calculate the initial values for the level and slope.

Let L0 be the initial level and B0 be the initial slope. We can estimate these using the following equations:

L0 = y1

B0 = y2 - y1

where y1 and y2 are the first two observed values in the time series.

Once we have the initial values, we can use the following recursive equations to calculate the level and slope at each time period t:

Lt = alpha * yt + (1 - alpha) * (Lt-1 + Bt-1)
Bt = gamma * (Lt - Lt-1) + (1 - gamma) * Bt-1

where yt is the observed value at time t.

Using these equations and the given smoothing constants, we can find the equation of the forecast line as:

Ft+1 = Lt + Bt

and the mean squared error (MSE) as:

MSE = (1 / n) * sum((yt - Ft)^2)

where n is the number of observed values.

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The value of the sides are;

x = 13

y = 13 √2

To determine the value of the identities, we have to note the know the trigonometric identities. They are;

From the information given, we have that;

Using the tangent identity;

tan θ = opposite/adjacent

substitute the values, we get

tan 45 = x/13

cross multiply the values

x = 13

Using the sine identity

sin 45 = 13/y

y = 13 √2

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The fact that the sample means follow an approximately normal distribution is crucial in constructing a confidence interval for a population mean with a known standard deviation.

This is because we can use the properties of the normal distribution to calculate the probability that the true population mean falls within a certain range of values. In this case, we have a sample mean of x¯=10 and a 90% confidence interval of (5, 15) with an estimated bound on the error margin (EBM) of 5. This means that we can be 90% confident that the true population mean lies within the interval (5, 15), with a margin of error of 5 units.

This result is based on the assumption that the sample means follow an approximately normal distribution.

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Therefore, the probability of a bulb lasting between 632 and 640 hours is 0.0455 (or 4.55%).

To solve this problem, we need to standardize the values of 632 and 640 using the given mean and standard deviation, and then find the probability of the bulb lasting between these two standardized values.

Let X be the lifetime of a light bulb. We know that X ~ N(μ = 600, σ = 25).

Let Z be the standardized normal variable, given by:

Z = (X - μ) / σ

Substituting the values, we get:

Z632 = (632 - 600) / 25 = 1.28

Z640 = (640 - 600) / 25 = 1.60

To find the probability of a bulb lasting between 632 and 640 hours, we need to find the area under the standard normal curve between Z632 and Z640. We can use a standard normal table or a calculator to find this area.

Using a standard normal table or calculator, we find that the probability of a bulb lasting between 632 and 640 hours is:

P(1.28 < Z < 1.60) = P(Z < 1.60) - P(Z < 1.28)

From the standard normal table, we find that P(Z < 1.60) = 0.9452 and P(Z < 1.28) = 0.8997. Therefore,

P(1.28 < Z < 1.60) = 0.9452 - 0.8997 = 0.0455 (rounded to four decimal places)

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For problem 9, the appropriate procedure is the difference in means with two independent samples. This is because there are two independent groups of men rating the attractiveness of the same woman after seeing her picture on different backgrounds. The two groups are not paired or related to each other in any way.

For problem 10, the appropriate procedure is paired difference in means. This is because the same group of women is rating the attractiveness of the same man after seeing his picture on different backgrounds. The two ratings are paired or related to each other because they are coming from the same group of women.

For problem 11, the appropriate procedure is paired difference in means. This is because each student is having their skin temperature tested before and after sitting with a laptop for one hour. The two temperature readings for each student are paired or related to each other because they are coming from the same individual.

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If events A and B are independent, then P(B|A) = P(B).

From the given information, we have:

P(B|A) = 0.32

P(A) = 0.54

Using the formula for conditional probability, we can write:

P(B|A) = P(A and B) / P(A)

Solving for P(A and B), we get:

P(A and B) = P(B|A) x P(A) = 0.32 x 0.54 = 0.1728

Now, to find P(B), we can use the formula:

P(B) = P(B and not A) + P(B and A)

Since A and B are independent, we have:

P(B and not A) = P(B) - P(A and B) = P(B) - 0.1728

Substituting the given values, we get:

P(B) - 0.1728 + 0.1728 = 0.33

P(B) = 0.33 + 0.1728 = 0.5028

Therefore, the probability of event B is 0.5028

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The Laplace transform of f(t) cosh kt cos kt is:

L[f(t) cosh kt cos kt] = F(s) [4k^4 + 4ks(s^2 + k^2) + s^4]/s^2(s^2 + k^2)^2

The Translation (Shifting) Theorem states that if F(s) is the Laplace transform of f(t), then the Laplace transform of e^(at)f(t) is F(s - a).

Using this theorem, we can find the Laplace transform of f(t) cosh ktcoskt as follows:

Let g(t) = cosh kt cos kt. Then, using the identity cosh x = (e^x + e^-x)/2 and the linearity of the Laplace transform, we have:

L[f(t) cosh kt cos kt] = L[f(t) g(t)]

= L[e^(0t)f(t)g(t)]

= L[e^(kt) (e^-kt f(t)) g(t)]

= L[e^(kt) F(s - (-k)) g(t)]

where we used the Translation (Shifting) Theorem with a = -k and F(s) = L[f(t)].

Now, using the fact that g(t) = cosh kt cos kt = (e^kt + e^-kt)/2 * cos kt, we can write:

L[f(t) cosh kt cos kt] = L[e^(kt) F(s + k) (e^kt + e^-kt)/2 * cos kt]

= 1/2 L[e^(2kt) F(s + k) cos kt] + 1/2 L[F(s + k) cos kt]

Using the Laplace transform of cos kt (which can be found in a Laplace transform table or by integrating by parts), we get:

L[f(t) cosh kt cos kt] = 1/2 [(s + k)/(s^2 + k^2)^2 - 2k/(s^2 + k^2)] F(s + k) + 1/2 (s/(s^2 + k^2)^2 - 1/(s^2 + k^2)) F(s)

Simplifying this expression, we get:

L[f(t) cosh kt cos kt] = [s^2 - k^2 + 2ks + 4k^2/s^2(s^2 + k^2)^2] F(s)

which is algebraically equivalent to F(s) [4k^4 + 4ks(s^2 + k^2) + s^4]/s^2(s^2 + k^2)^2.

Therefore, the Laplace transform of f(t) cosh kt cos kt is:

L[f(t) cosh kt cos kt] = F(s) [4k^4 + 4ks(s^2 + k^2) + s^4]/s^2(s^2 + k^2)^2

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A right angle is equal to 90° and a reflex angle is greater than 180°.

The rays of the protractor is used to measure angles.

We know that when we talk about an angle, we mean a place where two lines are joined. Thus the joining of two lines makes an angle. There are several kinds of angles that we have in mathematics.

If we are talking about the reflex angle then we mean the kind of angle that measures greater than 180 degrees but less than 360 degrees.

When we use a protractor, the rays of the protractor is the point that we can use in the measurement of an angle.

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The numbers from the set {1, 2, 3, 4} that are part of the solution to the inequality 7x + 6 > 20 are:  {3, 4}

There are different Inequalities such as:

Greater than

Less than

Greater than or equal to

Less than or equal to

Now, we are given the inequality as:

7x + 6 > 20

Subtract 6 from both sides to get:

7x > 14

Divide both sides by 7 to get:

x > 2

Thus, the set of solutions is: (3, 4)

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If line q passes through points (1,5) and (8, 2). line r is perpendicular to q, Then the slope of line r is 7/3.

The slope of a line is a measure of how steep the line is, or how much the line rises or falls as we move horizontally along it. It is defined as the ratio of the change in the vertical (y) coordinate to the change in the horizontal (x) coordinate between any two points on the line. In other words, it is the "rise" divided by the "run".

The formula for finding the slope between two points (x1, y1) and (x2, y2) on a line is:

slope = (y2 - y1) / (x2 - x1)

The slope can be positive, negative, zero or undefined. A positive slope means the line rises as we move from left to right, a negative slope means the line falls as we move from left to right, a slope of zero means the line is horizontal and a slope that is undefined means the line is vertical.

The slope of the line q passing through the points (1,5) and (8,2) can be found using the slope formula:

the slope of q = (change in y) / (change in x)

= (2 - 5) / (8 - 1)

= -3/7

Since line r is perpendicular to line q, the slope of line r will be the negative reciprocal of the slope of line q. That is:

the slope of r = -1 / slope of q

= -1 / (-3/7)

= 7/3

Therefore, the slope of line r is 7/3.

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The values of a, h and k on the function are given as follows:

The meaning of the transformations is given as follows:

A translation happens when either a figure or a function is moved horizontally or vertically on the coordinate plane.

The four translation rules for functions are defined as follows:

The parent function in this problem is given as follows:

y = 1/x.

Hence the meaning of the transformations is given as follows:

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Answer: yield = ($70 / $875) x 100% = 8% (rounded to the nearest hundredth)

Step-by-step explanation:

To calculate the yield on a corporate bond, we need to use the following formula:

yield = (annual coupon payment / bond price) x 100%

In this case, the bond has a face value of $1000 and pays a fixed interest rate of 7%. The bond was purchased at a discount price of $875. The annual coupon payment can be calculated as:

annual coupon payment = face value x coupon rate = $1000 x 7% = $70

Using the formula above, we can calculate the yield as:

yield = ($70 / $875) x 100% = 8%

Therefore, the yield on this corporate bond is 8% rounded to the nearest hundredth.

The value of the angle x of the regular octagon is: x = 112.5°

The formula for the Interior angle of a Polygon is:

θ = 180(n - 2)/n

We are given that the polygon has 8 sides. Thus:

θ = 180(8 - 2)/8

θ = 135°

Sum of angles in a triangle is 180° and as such, the base angles of the Isosceles triangle formed is:

base angle = (180 - 135)/2

= 22.5°

Thus:

x = 135 - 22.5

x = 112.5°

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Hackman Corporation will record interest expense of $58822 on each interest payment date for the life of the bonds.

Hackman Corporation issued$ 1 million face value 12 bonds dated January 1, 2019, for$. The bonds pay interest semiannually on June 30 and December 31 and are due December 31, 2023. Hackman uses the straight- line amortization  system to  regard for the bond  decoration. The periodic  decoration amortization is$ 2,300, and the semiannual  decoration amortization is$ 1,150.

Annual effective interest rate = (Face value of the bonds × Coupon rate) / Issue price of the bonds

Annual effective interest rate = ($1,000,000 × 12%) / $1,023,000 = 11.76%

Effective interest rate for the period = (1 + (11.76% / 2))^(6 / 12) - 1 = 5.75%

Interest expense = $1,023,000 × 5.75% = $58,822.50

Therefore, the amount of interest expense that Hackman Corporation should recognize on June 30, 2019, is approximately $58,822.50.

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