2) What characteristics of the original samples make them inappropriate for use

Question

2) What characteristics of the original samples make them inappropriate for use in a 2 sample t-test?

3) What is the p-value you computed based on your randomization distribution and the alternative hypothesis in this task?

4) Using your answer in #3 above, would you support a claim that the population average exercise hours per week for males is greater than the population average exercise hours per week for females, or would you fail to support that claim. Explain your reasoning and reference your p-value in your explanation for full credit. You can use a significance level of = .05 if you wish.  

StatKey Randomization Test for a Difference in Means Exercise Hours (Male vs Female)-Show Data Table Edit Data Upload File | Change Column Randomization method Reallocate Groups Generate 1 Sample Generate 10 Samples Generate 100 Samples Generate 1000 Samples Reset Plot Randomization Dotplot of x1-x2. Null hypothesis: 1 =2 Original Sample RI-72 = 3, n1 = 20, n,-30 samples 4000 mean = 0.048 std. error 2.340 125 Left Tail Two-Tail Right Tail 100 9.4 10 20 30 75 12.4 Randomization Sample Show Data Table 113 RI-r,-4.75, n1 = 20, n2 = 30 25 8.7 10 20 30 null = 0 13.45

Explanation / Answer

1. The difference between sample means = 3

2. The sample are not randomly selected ( for t test samples are to be randomly selected)

3. P value is 0.113

4. Since p value is greater than 0.05 ( the significance level ), we would fail to support the claim that population average for males is greater than for females

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