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1. Suppose we are interested in comparing female versus male running speeds. The following data is provided:
Gender Female Male
Sample Size 20 20
Average Running Speed 12.05 9.15
Sample Standard Deviation 2.31 3.25
a. What is the 99% confidence interval for the difference between the average running speed between females and males?
b. What is the test statistic for the difference for females and males?
c. What is the p-value?
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The Scatter plot can more easily be generated using the Chart procedure.
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Identify any points that lie outside a 95% Confidence Level (Mean plus or minus two standard deviations) using the above winter mean and standard deviation. Explain your answer. Graph the data.
Being a student, you probably have well-developed feelings about homework. Given the same amount of material learned, the less the better, right?
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