A sample of birth weights of 24 girls was taken. Below are the results (in g): 3301.7 3304.7 3409.1 2023.3 2465.8 2678.8 3475.9 3451.6 3354.7 3443.1 3727.1 3186.8 3327.2 2935.3 4378.3 3433.2 4031.8 3313.5 2973.8 3502.2 4767.5 3370.1 3634.9 2756.7 (Note: The average and the standard deviation of the data are respectively 3343.6 g and 571.6 g.) Use a 10% significance level to test the claim that the standard deviation of birthweights of girls is different from the standard deviation of birthweights of boys, which is 460 g.

A sample of birth weights of 24 girls was taken. Below are the results (in g): 3301.7 3304.7 3409.1 2023.3 2465.8 2678.8 3475.9 3451.6 3354.7 3443.1 3727.1 3186.8 3327.2 2935.3 4378.3 3433.2 4031.8 3313.5 2973.8 3502.2 4767.5 3370.1 3634.9 2756.7 (Note: The average and the standard deviation of the data are respectively 3343.6 g and 571.6 g.) Use a 10% significance level to test the claim that the standard deviation of birthweights of girls is different from the standard deviation of birthweights of boys, which is 460 g.

Mathematics For Machine Technology

8th Edition

ISBN:9781337798310

Author:Peterson, John.

Publisher:Peterson, John.

Chapter29: Tolerance, Clearance, And Interference

Section: Chapter Questions

Problem 16A: Spacers are manufactured to the mean dimension and tolerance shown in Figure 29-12. An inspector...

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Question

A sample of birth weights of 24 girls was taken. Below are the results (in g):

3301.7	3304.7	3409.1	2023.3	2465.8
2678.8	3475.9	3451.6	3354.7	3443.1
3727.1	3186.8	3327.2	2935.3	4378.3
3433.2	4031.8	3313.5	2973.8	3502.2
4767.5	3370.1	3634.9	2756.7

(Note: The average and the standard deviation of the data are respectively 3343.6 g and 571.6 g.)

Use a 10% significance level to test the claim that the standard deviation of birthweights of girls is different from the standard deviation of birthweights of boys, which is 460 g.

Expert Solution