According the a University Center for Logistics Management, 7% of all merchandise sold in the United States gets returned. A Seattle department store samples 89 items sold in January and found that 10 of the items were returned. H0: p = 0.07 H1: p < 0.07 Calculate the test statistic: Group of answer choices 1.31 2.33 0.99 1.15 1.57

The test statistic is 1.57.

Step-by-step explanation:

Our test statistic is:

In which X is the sample mean, is the value tested at the null hypothesis, is the standard deviation and n is the size of the sample.

A Seattle department store samples 89 items sold in January and found that 10 of the items were returned.

This means that

7% of all merchandise sold in the United States gets returned.

This means that

For a proportion, the standard deviation is

Test statistic:

The test statistic is 1.57.

$35.59 in pounds

step-by-step explanation:

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,