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A national health survey weighed a sample of 260 boys aged 6-11 and found that 45 of them were overweight. They weighed a sample of 230 girls aged 6-11 and found that 30 of them were overweight. Can you conclude that the proportion of overweight kids aged 6-11 among boys is the same as the proportion of overweight kids aged 6-11 among girls? Use level of significance 10%. Procedure: Two proportions Z Hypothesis Test Assumptions: (select everything that applies) Sample sizes are both greater than 30 Paired samples ✔Simple random samples OF Population standard deviation are unknown but assumed equal ✔Independent samples Normal populations Population standard deviations are known ✔The number of positive and negative responses are both greater than 10 for both samples Population standard deviation are unknown Step 1. Hypotheses Set-Up: Ho: P.-P₂ Ha P₁-P₂ = 30 X Step 2. The significance level a = 10 0 % where p's are o the difference between population means units are people , and the test is Two-Tail Part 2 of 5 X and the

A national health survey weighed a sample of 260 boys aged 6-11 and found that 45 of them were overweight. They weighed a sample of 230 girls aged 6-11 and found that 30 of them were overweight. Can you conclude that the proportion of overweight kids aged 6-11 among boys is the same as the proportion of overweight kids aged 6-11 among girls? Use level of significance 10%. Procedure: Two proportions Z Hypothesis Test Assumptions: (select everything that applies) Sample sizes are both greater than 30 Paired samples ✔Simple random samples OF Population standard deviation are unknown but assumed equal ✔Independent samples Normal populations Population standard deviations are known ✔The number of positive and negative responses are both greater than 10 for both samples Population standard deviation are unknown Step 1. Hypotheses Set-Up: Ho: P.-P₂ Ha P₁-P₂ = 30 X Step 2. The significance level a = 10 0 % where p's are o the difference between population means units are people , and the test is Two-Tail Part 2 of 5 X and the

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A national health survey weighed a sample of 260 boys aged 6-11 and found that 45 of them were overweight. They weighed a sample of 230 girls aged 6-11 and found that 30 of them were overweight. Can you conclude that the proportion of overweight kids aged 6-11 among boys is the same as the proportion of overweight kids aged 6-11 among girls? Use level of significance 10%. Procedure: Two proportions Z Hypothesis Test Assumptions: (select everything that applies) Sample sizes are both greater than 30 Paired samples Simple random samples Population standard deviation are unknown but assumed equal Independent samples Normal populations Population standard deviations are known The number of positive and negative responses are both greater than 10 for both samples Population standard deviation are unknown Step 1. Hypotheses Set-Up: Ho: P₁-P₂ Ha P₁-P₂ #v 30 X Step 2. The significance level a = 10 ✓ 0 % where p's are difference between population means units are people X and the test is Two-Tail the Part 2 of 5 X and the
Transcribed Image Text:A national health survey weighed a sample of 260 boys aged 6-11 and found that 45 of them were overweight. They weighed a sample of 230 girls aged 6-11 and found that 30 of them were overweight. Can you conclude that the proportion of overweight kids aged 6-11 among boys is the same as the proportion of overweight kids aged 6-11 among girls? Use level of significance 10%. Procedure: Two proportions Z Hypothesis Test Assumptions: (select everything that applies) Sample sizes are both greater than 30 Paired samples Simple random samples Population standard deviation are unknown but assumed equal Independent samples Normal populations Population standard deviations are known The number of positive and negative responses are both greater than 10 for both samples Population standard deviation are unknown Step 1. Hypotheses Set-Up: Ho: P₁-P₂ Ha P₁-P₂ #v 30 X Step 2. The significance level a = 10 ✓ 0 % where p's are difference between population means units are people X and the test is Two-Tail the Part 2 of 5 X and the
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