Author Question: Independent random samples were selected from each of two normally distributed populations, from ... (Read 147 times)

AEWBW · **on:** Feb 14, 2020

Question 1

Suppose it desired to compare two physical education training programs for preadolescent girls. A total of 82 girls are randomly selected, with 41 assigned to each program. After three 6-week periods on the program, each girl is given a fitness test that yields a score between 0 and 100. The means and variances of the scores for the two groups are shown in the table.

Test to determine if the variances of the two programs differ. Use α = .05.

Question 2

Independent random samples were selected from each of two normally distributed populations,

from population 1 and

from population 2. The data are shown below.

Population 1:

2.5

3.1

2.3

1.8

4.2

3.5

3.9

Population 2:

2.9

1.7

4.6

3.5

3.7

2.8

4.6

3.4

1.9

Find the test statistic for the test of

against

.
◦ 1.36
◦

1.17

◦ .735
◦ .857

Sarahjh · **Reply #1 on:** Feb 14, 2020

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