A sample of birth weights of 36 girls was taken. Below are the results (in g): 3134.1 3638.6 4574.4 2592.9 3434 4921.4 2097.5 2976.1 3907.2 3913.6 2614.2 2970.8 2405.6 2518.8 3503.4 2629.9 3047.9 3380.3 3440 2943.6 3314.2 3131.9 3369.6 2728.1 2827.3 2923 3901.8 3044 4282.9 3378.8 3377.8 3761.8 3489.8 3890.7 4080 2803.8 3304.2 g 620.82 g Use a 5% significance level to test the claim that the standard deviation of birth weights of girls is different from the standard deviation of birth weights of boys, which is 470 g. Round all answers to 3 decimal places if possible. Procedure: Select an answer Step 1. Hypotheses Set-Up: Hạ: Select an answer ♥ H„: Select an answer The test is a Select an answer |test. Step 2. The significance level is a Step 3. Compute the value of the test statistic: Select an answer Step 4. Testing Procedure:

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Procedure answer options: 

one mean z hypothesis 

one mean T hypothesis 

one variance xhypothesis 

one proportion z hypothesis 

Test is a ? 

two tailed or left tailed or right tailed 

 

step 3: 

z0

t0

 

xo2

A sample of birth weights of 36 girls was taken. Below are the results (in g):
3503.4
2629.9
3380.3
3134.1
3638.6
4574.4
2592.9
3434
3131.9
3901.8
3044
3907.2
3913.6
2614.2
2970.8
3440
3047.9
3369.6
2728.1
2943.6
3314.2
3761.8
4282.9
3378.8
2405.6
4921.4
2827.3
3489.8
3377.8
2518.8
2097.5
2976.1
3890.7
2923
4080
2803.8
= 3304.2 g
8 = 620.82 g
Use a 5% significance level to test the claim that the standard deviation of birth weights of girls is different
from the standard deviation of birth weights of boys, which is 470 g-
Round all answers to 3 decimal places if possible.
Procedure: Select an answer
Step 1. Hypotheses Set-Up:
Hg: Select an answer
H: Select an answer
The test is a Select an answer
test.
Step 2. The significance level is a
Step 3. Compute the value of the test statistic: Select an answer
Step 4. Testing Procedure:
Provide the critical value(s) for the Rejection Region. For a one-tailed test, use DNE for the
Transcribed Image Text:A sample of birth weights of 36 girls was taken. Below are the results (in g): 3503.4 2629.9 3380.3 3134.1 3638.6 4574.4 2592.9 3434 3131.9 3901.8 3044 3907.2 3913.6 2614.2 2970.8 3440 3047.9 3369.6 2728.1 2943.6 3314.2 3761.8 4282.9 3378.8 2405.6 4921.4 2827.3 3489.8 3377.8 2518.8 2097.5 2976.1 3890.7 2923 4080 2803.8 = 3304.2 g 8 = 620.82 g Use a 5% significance level to test the claim that the standard deviation of birth weights of girls is different from the standard deviation of birth weights of boys, which is 470 g- Round all answers to 3 decimal places if possible. Procedure: Select an answer Step 1. Hypotheses Set-Up: Hg: Select an answer H: Select an answer The test is a Select an answer test. Step 2. The significance level is a Step 3. Compute the value of the test statistic: Select an answer Step 4. Testing Procedure: Provide the critical value(s) for the Rejection Region. For a one-tailed test, use DNE for the
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