Question

In: Statistics and Probability

The federal government would like to test the hypothesis that the standard deviation for the age...

The federal government would like to test the hypothesis that the standard deviation for the age of men filing for Social Security is higher than the standard deviation for the age of women. The following table summarizes sample statistics from each population.

Women

Men

Sample standard deviation

2.4 years

3.4 years

Sample size

24

20

The test statistic for this hypothesis test would be ________.

2.01
4.87
5.60
7.74

A chocolate chip cookie producer claims that its cookies average 3 chocolate chips and that the distribution follows the Poisson. A consumer group wanted to test this claim and randomly sampled 150 cookies. The resulting frequency distribution is shown below.

Chips per Cookie

Frequency

0

4

1

20

2

39

3

37

4

27

5

13

6 or more

10

The expected number of cookies from this sample that will exactly five chips is ________.

15.12
19.32
23.60
26.17

Solutions

Expert Solution

orchestra answered 2 years ago
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