Some teams in their videos mentioned that they used ANOVA and they were able to reject the null hypothesis. You are tasked with explaining to them the purpose of a post hoc test in ANOVA which is something they should have done. Which of the following would be the correct explanation? a. It identifies where differences between the treatment groups exist. b. It identifies differences between and within study groups. c. It identifies where differences within the treatment group exist. d. It identifies the overall appropriateness of the ANOVA model.

Answer:

2, 5

Step-by-step explanation:

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The 95% confidence interval for the true proportion of all auto accidents involving teenage drivers is approximately (0.1205, 0.1927).

To find the 95% confidence interval for the true proportion of all auto accidents involving teenage drivers, we can use the formula for the confidence interval for a proportion.

The formula for the confidence interval is:

CI = p1 ± Z * √((p1 * (1 - p1)) / n)

Where:

CI is the confidence interval,

p1 is the sample proportion (proportion of accidents involving teenage drivers),

Z is the Z-score corresponding to the desired confidence level (95% confidence level corresponds to Z ≈ 1.96),

n is the sample size (number of accidents checked).

Given:

Number of accidents checked (sample size), n = 582

Number of accidents involving teenage drivers, x = 91

First, we calculate the sample proportion:

p1 = x / n = 91 / 582 ≈ 0.1566

Now we can calculate the confidence interval:

CI = 0.1566 ± 1.96 * √((0.1566 * (1 - 0.1566)) / 582)

Calculating the standard error of the proportion:

SE = √((p1 * (1 - p1)) / n) = √((0.1566 * (1 - 0.1566)) / 582) ≈ 0.0184

Substituting the values into the formula:

CI = 0.1566 ± 1.96 * 0.0184

Calculating the values:

CI = 0.1566 ± 0.0361

Finally, we can simplify the confidence interval:

CI = (0.1205, 0.1927)

Therefore, the 95% confidence interval for the true proportion of all auto accidents involving teenage drivers is approximately (0.1205, 0.1927).

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The 95% confidence interval for the difference between the proportion of the population who would survive at least 15 years can be used to estimate the range within which the true difference lies.

It provides a measure of uncertainty around the point estimate. The confidence interval can be interpreted as follows: we are 95% confident that the true difference in proportions of the population who would survive at least 15 years falls within the calculated interval. To construct the confidence interval, we first need to obtain sample data from the population. Let's assume we have collected data from two independent samples. From Sample 1, we find that out of n1 individuals, x1 survive at least 15 years. Similarly, from Sample 2, we have n2 individuals, with x2 surviving at least 15 years. To calculate the confidence interval, we use the formula: CI = (p1 - p2) ± Z * sqrt((p1 * (1 - p1) / n1) + (p2 * (1 - p2) / n2)) Where p1 = x1 / n1 and p2 = x2 / n2 are the sample proportions, and Z is the critical value corresponding to the desired confidence level (in this case, 95%). The critical value is determined based on the standard normal distribution. Once we have the confidence interval, let's say [lower limit, upper limit], we can interpret it as follows: We are 95% confident that the true difference in proportions between the two populations who would survive at least 15 years lies between the lower limit and the upper limit. In other words, there is a high likelihood that the actual difference falls within this range. The confidence interval allows us to make inferences about the population based on our sample data. It provides a range of plausible values for the difference in proportions, taking into account the variability of the sample. The wider the confidence interval, the greater the uncertainty in our estimate. Conversely, a narrower interval indicates a more precise estimation.

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Answer:

(3x - 14) = (2x+ 10) { Because the angles are vertically opposite to each other}

3x-2x= 14+10

x=24

Answer:

prism

Step-by-step explanation:

Answer:

it is a cube but if we using the answer her it will be C.prism because a cube is a prism

Answer:

881.81818181818181818181818181818

Rounded to the nearest tenth: 881.8

Rounded to the nearest hundredth: 881.82

Rounded to the nearest thousandth: 881.818

Step-by-step explanation:

Use a calculator.

Hope this helps!

If not, I am sorry.

Answer:

881 9/11

Step-by-step explanation:

1) Use the algorithm method.

8 8 1

1 1 | 9 7 0 0

8 8  

9 0

8 8

2 0

1 1

9

2) Therefore, 9700 ÷ 11 = 881 with the remainder of 9.

881 with a remainder of 9

3) Express as a mixed fraction.

881 9/11

Decimal Form: 881.818182

Answer:

C. domain: {x ≤ 2}; range: {–∞ < y < ∞}

that's the right answer pramis:)

The minimum value of the objective function subject to the given constraints is 48 and it occurs at (6,0).

The given problem is:

min 8x₁ + 6x₂ subject to4x₁ + 2x₂ ≥ 20−6x₁ + 4x₂ ≤ 12x₁ + x₂ ≥ 6x₁ + x₂ ≥ 0

The feasible region is as follows:

Firstly, plot the following lines:4x₁ + 2x₂ = 20-6x₁ + 4x₂ = 12x₁ + x₂ = 6x₁ + x₂ = 0On plotting, the following graph is obtained:

Now, let's check each option one by one:

a. 4x₁ + 2x₂ ≥ 20

The feasible region is the region above the line 4x₁ + 2x₂ = 20.

b. −6x₁ + 4x₂ ≤ 12

The feasible region is the region below the line −6x₁ + 4x₂ = 12.c. x₁ + x₂ ≥ 6

The feasible region is the region above the line x₁ + x₂ = 6.d. x₁ + x₂ ≥ 0

The feasible region is the region above the x-axis.

Now, check the point of intersection of the lines.

They are:(10,0),(2,4),(6,0)The point (2,4) is not in the feasible region as it lies outside it.

Therefore, we reject this point.

The other two points, (10,0) and (6,0) are in the feasible region.

Now, check the values of the objective function at these two points.

Objective function value at (10,0): 80

Objective function value at (6,0): 48

Therefore, the minimum value of the objective function subject to the given constraints is 48 and it occurs at (6,0).

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Answer:

a) Charlie is telling the truth

b) If Adam is telling the truth, this leads to a contradiction because that would make the claim that Bob is lying, which means that Charlie is telling truth, and that would suggest that Adam and Bob are telling the truth when Adam said that Bob was lying.

c)

Step-by-step explanation:

Adam says Bob lies

Bob says Charlie lies

Charlie says Adam and Bob both lie

Answer:

x = 55

Step-by-step explanation:

ABCD is a paralellogram, m∠ABC = 2x + 15, m∠BCD = x

m∠ABC + m∠BCD = 180° (same side interior angles)

2x + 15 + x = 180

3x + 15 = 180 -15

3x = 165

x = 55

The critical value corresponds to the value of the t-statistic that marks the boundary of the critical region. By specifying the desired level of significance (alpha) and the degrees of freedom (df), one can locate the critical value in the t-distribution table or obtain it directly from software.

To determine the critical value(s) for a right-tailed test of a population mean at a given level of significance and degrees of freedom, we need to use the t-distribution table or statistical software.

The critical value for a right-tailed test corresponds to the value of the t-statistic that marks the boundary of the critical region. The critical region is the region in the tail of the t-distribution where we reject the null hypothesis.

To find the critical value, we need to specify the desired level of significance (alpha) and the degrees of freedom (df) for the t-distribution. The degrees of freedom depend on the sample size and the specific test being conducted.

Using the t-distribution table or software, locate the row that corresponds to the given degrees of freedom. Then, identify the column that corresponds to the desired level of significance (alpha) for a one-tailed test. In a right-tailed test, we are interested in the upper tail of the distribution.

The value at the intersection of the row and column in the t-distribution table is the critical value for the right-tailed test. If using software, the critical value can be directly obtained.

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Answer: 2

Step-by-step explanation:

The points (0, 4) and (2, 8) lie on the line. Using the gradient formula,

\(m=\frac{8-4}{2-0}=2\)

Answer:

Explanation:

Here, we want to rewrite the given expression

What we have to do is to start by opening up the bracket

To do this, we have to multiply the term on the left with each term inside the bracket

Then we collect the like terms and perform the necessary arithmetic operation

We have this as follows:

Answer:

68y-42

Step-by-step explanation:

7(9y+2y-6)-9y

Find the expression in simplest terms

Combine like terms

7(11y-6)-9y

Distribute

77y -42-9y

Combine like terms

68y-42

The proportion of the boards that will be greater than 122 inches is 84%

Given :

length of boards is listed as 10 feet is normally distributed with a mean of 123 inches and a standard deviation of 1 inch.

we are aske to determine what proportion of the boards will be greater than 122 inches = ?

we have :

μ = 123

σ = 122

now, let x denote the number of boards.

⇒ X ∼N (μₓ , σₓ²) X∼N(123,1)

⇒ P(X>122)=P( X- μₓ/ σₓ >  122-123/1)

⇒ P(Z > -1)

= 0.08413

= 84%

hence we get the value as 84%

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​

The probability of household views between 5 and 11 hours will be 0.7653. Number of hours needed in order to be in top 3% will be 13.03 hours. Probability of views more than 3 hours will be 0.9838.

a) The probability of television views between than 5 and 11 hours.

 P( 5≤X≤11) = P[ (5-μ)/σ ≤ (X-μ)/σ ≤ (11-μ)/σ]

                   = P [ (5-8.35)/2.5 ≤ z ≤ (11-8.35)/2.5)

                    = P ( -1.34 ≤ z ≤ 1.06)

                    = P ( z≤ 1.06) - P(z ≤ -1.34)

Substituting values from the z-table

   P ( 5≤X≤11) = 0.85543 - 0.09012 = 0.76531

Probability that household views between 5 and 11 hours is  0.7653.

b) Hours needed to be in top 3% of all households.

 P( X> h) = 0.03

 P[ (X-μ)/σ > (h-μ)/σ] = 0.03

P ( z >h-8.35/2.5) = 0.03

P ( z ≤ h-8.35/2.5) = 0.97

From the table

  (h - 8.35)/ 2.5 = 1.87

   h = (1.87× 2.5) + 8.35

      = 13.025 = 13.03 hours

So if the viewing time is more than 13.03, the household will be in the top 3%.

c) Probability of viewing more than 3 hours

 P(X> 3) = P[ (X-μ)/σ > (3-μ)/σ]

               = P( z < -2.14) = 0.9838

So probability the household will have views more than 3 hours will be 0.9838.

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Using graphs,

The ordered pair, (6,15) represents here the cost of 6 pounds of noodles that is $15.

A structured representation of the data is all that the graph is. It assists us in comprehending the info. Data are the numerical details gathered by observation. Data is a derivative of the Latin term datum, which means "something provided."

Data is continuously gathered through observation once a research question has been formulated. After that, it is arranged, condensed, and categorised before being graphically portrayed.

Here in the question,

As we can see that the graph is a relation between the number of noodles in pounds and the cost of noodles in dollars has been given and compared.

So, as per the question,

The ordered pair that represents here the cost of 6 pounds of noodles is (6,15).

As, from the graph:

When noodles in pounds is 6, cost in dollars is 15.

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The complete question is:

the points on the graph show how much chee pays for different amounts of noodles, complete the statement about the graph

Answer:

6 inches

Step-by-step explanation:

1 inch = 2.54 cm.

 1 cm = 1/2.54 inches.

14 cm = 14/2.54

14 cm, when rounded to nearest inch, results in around 6 inches.

The parametrization of the surface S is: r(x, y) = (x, y, x * sin(y)) for 0 < x < 3 and 0 < y < π.

To parametrize the surface S given by the graph of z = x * sin(y) on the domain D: 0 < x < 3, 0 < y < π, we can use the following parametrization:

r(x, y) = (x, y, x * sin(y))

Here, (x, y) represents the coordinates on the domain D, and r(x, y) represents the corresponding point on the surface S. The first component x represents the x-coordinate, the second component y represents the y-coordinate, and the third component x * sin(y) represents the z-coordinate.

Therefore, the parametrization of the surface S is:

r(x, y) = (x, y, x * sin(y)) for 0 < x < 3 and 0 < y < π.

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Answer:

$17

Step-by-step explanation:

$30/6- 5

$132/6-22

22-5

17

The value of the angle m < M is 180 degrees

It is important to note the following about a parallelogram;

From the information given in the diagram, we have that;

2x + 3x + 5 = 180, because they are supplementary

collect the like terms

5x = 180 - 5

subtract the values

x = 35

Then, m < M = 3x + 5 = 3(35) + 5 = 180 degrees

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9. The truth value of the complex statement (A⋅Y)v(−Z⋅C) is true.

10. The truth value of the complex statement ∼(X∨∼B)⋅(∼Y∨A) is false.

Let's determine the truth value of each complex statement based on the given information:

(A⋅Y)v(−Z⋅C)

Given: A, B, C are true, and X, Y, Z are false.

(A⋅Y)v(−Z⋅C) = (true⋅false) v (true⋅true) (since −Z⋅C is true when Z is false and C is true)

= false v true

= true

Therefore, the truth value of the complex statement (A⋅Y)v(−Z⋅C) is true.

∼(X∨∼B)⋅(∼Y∨A)

Given: A, B, C are true, and X, Y, Z are false.

∼(X∨∼B)⋅(∼Y∨A) = ∼(false∨true)⋅(true∨true) (since ∼X is true when X is false, and ∼B is false when B is true)

= ∼true⋅true

= false⋅true

= false

Therefore, the truth value of the complex statement ∼(X∨∼B)⋅(∼Y∨A) is false.

9. The truth value of the complex statement (A⋅Y)v(−Z⋅C) is true.

10. The truth value of the complex statement ∼(X∨∼B)⋅(∼Y∨A) is false.

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Answer:

Figure one=16cm^2,  Figure two=24cm^2, composite figure=40cm^2

Step-by-step explanation:

fig 1 has one side length of 4 and we can find its other length by adding 5 and 3 and then subtracting it from 12 which equals 4 now since two sides are 4, it means that this shape is a square and 4^2 is 16cm^2 and the rectangle has the length of 12 and breadth of 2 so l*b=24cm^2 and to find the area of the composite shape we simply add these area up

16cm^2+24cm^2=40cm^2

Given:

The side lengths of two cubes are 2.5 yd and 2 yd.

To find:

The side length of third cube.

Solution:

From the given figure it is clear that the cubes are inclined to each other in such a way so that they form a right angle triangle and side length of third cube is the base.

Let x be the side length of the third cube.

Using Pythagoras theorem, we get

\(Hypotenuse^2=Base^2+Perpendicular^2\)

\((2.5)^2=(x)^2+(2)^2\)

\(6.25=x^2+4\)

\(6.25-4=x^2\)

\(2.25=x^2\)

Taking square root on both sides, we get

\(x=\pm\sqrt{2.25}\)

\(x=\pm 1.5\)

Side cannot be negative. So,

\(x=1.5\)

Therefore, the side length of the  third cube is \(x=1.5\) yd.

Answer:

the product of a and c is negitive

Step-by-step explanation:

Answer:

The second one is true

The third one is true

The fourth one is false

The fifth one is true

The sixth one is false

Answer:

X= 15

Step-by-step explanation:

3x - 15 + 150 = 180

X = 15

Answer: A and B

Step-by-step explanation: 9:15 if you divide them by three you get 3:5 and b if you divide by 5 you get 3:5

(NOT 100% sure HAVENT DONE THIS IS MANY YEARS)

Answer:

it's letter a and b .

15 is not because 3 can divide 15 perfectly but 25 not. thanks