• Use the Google drive link below Please
• https://drive.google.com/file/d/1MZ1Akbu7NIq4bdQ5VBQdHfmHz947myq4/view?usp=sharing
• If you consider the Chicago marathon runners to be a sample from some population of marathon runners, you can test hypotheses about differences in completion time based on gender and age.
• I need the overall age and gender composition of those who completed the Chicago marathon. Be sure to look at age within genders as well.
• Test the null hypothesis that men and women have the same average completion times (hint: refer to the variable labels to determine which variable to use). List your null and alternate hypotheses and summarize the results in context of the problem. Be sure to report the test statistic, p-value, and conclusion.
• Suppose that men and women of the same age ran at the same speed. Given the age distributions of men and women, would you expect to reject the null hypothesis that average completion times are the same for men and women? Explain.
• Select only runners in the age group 40-44 (hint: use the agecat8 variable). Test the null hypothesis that the average time to completion is the same for men and women. Add your results in context of the problem. Be sure to report the test statistic, p-value, and conclusion.