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Use a 5% 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 530 g.

Use a 5% 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 530 g.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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3089.1 2554.3 4395.9 2857 2559 2923.7 3733 3634.4 3067.4 3659.1 3543.5 2271.5 3059.2 3647 3337.2 2438 3171.5 3432.4 2525.4 3165.5 2815 (Note: The average and the standard deviation of the data are respectively 3098.6 g and 605.65 g.) Use a 5% 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 530 g. Procedure: Select an answer Assumption Select an answer O Simp One mean T Hypothesis Test O The d bonses are both greater than 10 O Norm One proportion Z Hypothesis Test O Popu O Samg One mean Z Hypothesis Test O Popu One variance x Hypothesis Test Step 1. Hypounese Jecop. where ? is the Select an answer Họ: Select an answer and the units are H: Select an answer and the test is Select an ansSwer v
Transcribed Image Text:3089.1 2554.3 4395.9 2857 2559 2923.7 3733 3634.4 3067.4 3659.1 3543.5 2271.5 3059.2 3647 3337.2 2438 3171.5 3432.4 2525.4 3165.5 2815 (Note: The average and the standard deviation of the data are respectively 3098.6 g and 605.65 g.) Use a 5% 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 530 g. Procedure: Select an answer Assumption Select an answer O Simp One mean T Hypothesis Test O The d bonses are both greater than 10 O Norm One proportion Z Hypothesis Test O Popu O Samg One mean Z Hypothesis Test O Popu One variance x Hypothesis Test Step 1. Hypounese Jecop. where ? is the Select an answer Họ: Select an answer and the units are H: Select an answer and the test is Select an ansSwer v
A sample of birth weights of 45 girls was taken. Below are the results (in g): 3962.9 3197.4 2624.2 4949.1 2958.3 3045.2 2870.1 2618.7 4049.9 2705.5 3341.3 2480.4 2510 3544.2| 3829.3 2455.7 3423.4 3284.6 1859.3 2251.9 2965.8 3074 3557 2596.7 2500.8 2559 3659.1 2525.4 3089.1 2554.3 4395.9 3634.4 2857 2923.7 3733 3067.4 3543.5 3337.2 2271.5 3059.2 3171.5 3432.4 3165.5 2438 2815 3647 (Note: The average and the standard deviation of the data are respectively 3098.6 g and 605.65 g.) Use a 5% 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 530 g. Procedure: Select an answer Assumptions: (select everything that applies) O Simple random sample O The number of positive and negative responses are both greater than 10 O Normal population O Population standard deviation is known O Sample size is greater than 30 O Population standard deviation is unknown Step 1. Hypotheses Set-Up: where v is the Ho: Select an answer v Select an answer v and the units are H: Select an answer v? v and the test is Select an answer v Step 2. The significance level a = Step 3. Compute the value of the test statistic: Select an answer v (Round the answer to 3 decimal places) Step 4. Testing Procedure: (Round the answers to 3 decimal places)
Transcribed Image Text:A sample of birth weights of 45 girls was taken. Below are the results (in g): 3962.9 3197.4 2624.2 4949.1 2958.3 3045.2 2870.1 2618.7 4049.9 2705.5 3341.3 2480.4 2510 3544.2| 3829.3 2455.7 3423.4 3284.6 1859.3 2251.9 2965.8 3074 3557 2596.7 2500.8 2559 3659.1 2525.4 3089.1 2554.3 4395.9 3634.4 2857 2923.7 3733 3067.4 3543.5 3337.2 2271.5 3059.2 3171.5 3432.4 3165.5 2438 2815 3647 (Note: The average and the standard deviation of the data are respectively 3098.6 g and 605.65 g.) Use a 5% 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 530 g. Procedure: Select an answer Assumptions: (select everything that applies) O Simple random sample O The number of positive and negative responses are both greater than 10 O Normal population O Population standard deviation is known O Sample size is greater than 30 O Population standard deviation is unknown Step 1. Hypotheses Set-Up: where v is the Ho: Select an answer v Select an answer v and the units are H: Select an answer v? v and the test is Select an answer v Step 2. The significance level a = Step 3. Compute the value of the test statistic: Select an answer v (Round the answer to 3 decimal places) Step 4. Testing Procedure: (Round the answers to 3 decimal places)
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