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2 years ago

What is correct about F-test of overall validity of the model?

Mathematics

1 answer:

sweet-ann [11.9K]2 years ago

7 0

Answer: B

Step-by-step explanation:

It is one sided test of R-squared being zero versus being greater than zero.

These are the steps of the test.

1. State the null and alternative hypothesis: ...

2. Compute the test statistic: ...

3. Find a (1 - 0.05)×100% confidence interval for the test statistic. ...

4. Decide whether to accept or reject the null hypothesis: 5.991 ∉ [0, 2.28], so reject H 0 .

5. Determine the p-value.

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Anthony works at a company where he gets a set 5% raise every year. If his current salary is

algol13

117,150

5% of 71,000 is 3,550, 3,550 c 13(years) = 46,150(what the company will add to his salary) 71,000 + 46,150 = 117,150

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2 years ago

A manufacturing unit currently operates at 80 percent of its capacity. The profit function for the unit at the optimum output, x

dem82 [27]

Answer:

The correct answers are c. p(f(x)) = -.064x^2+64x-60

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Step-by-step explanation:

This is correct on the test

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3 years ago

Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 72.6 Mbp

Lapatulllka [165]

Answer:

a. 54.05 Mpbs.

b. 2.745... standard deviations.

c. The z-score is 2.745....

d. The carrier's highest data speed is significantly high.

Step-by-step explanation:

a. The difference between the highest measured data speed and the mean is 72.6 - 18.55 = 54.05 Mbps.

b. The amount of standard deviations of 54.05 Mbps is equal to this value divided by the standard deviations, so we yield $\frac{54.05}{19.69} = 2.745...$ standard deviations.

c. The z-score is equal to the difference between the mean and a data point in standard deviations, so the z-score is 2.745....

d. 2.745... is not between -2 and 2, so the carrier's highest data speed is not insignificant - so it's significantly high.

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2 years ago

Translation: 4 units left and 4 units up<br> J(−1, −2), A(−1, 0), N(3, −3)

deff fn [24]

Answer:

J(-5,2), A(-5,4), and N(-1,1)

Step-by-step explanation:

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3 years ago

What type of transformation takes the graph of f(x)=|x| to the graph of g(x)=|4+x|?

ivolga24 [154]

Translation to the left by 4 units

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2 years ago

Read 2 more answers