Read the questions carefully and follow directions. Show work in order to receiv
ID: 3317892 • Letter: R
Question
Read the questions carefully and follow directions. Show work in order to receive credit. 13. To be considered for Harvard, one must have an SAT score of at least 1470. Would it be unusual for an SAT score to be at least 1470? Justify your answer using the information in the graph in problem 12 14, what SAT score separates the top 10% of the scores from the rest? A sprint duathlon consists of a 5 km run, a 20 km bike ride, followed by another 5 km run. The mean finish time of all female participants in a recent large duathlon over an extremely difficult course was 2.3 hours with a standard deviation of 15 minutes. The distribution of finish times for females is right skewed. Suppose that a sample of 60 randomly selected male participants is selected. Use this information for problems 15 through 17 15. Suppose that the process of drawing samples of size 70 from the population of all female participants is repeated thousands of times. Describe the shape of the sampling distribution of the mean finish time of all female participants.Explanation / Answer
Q 15
Answer: Since the sample size is large, i.e. n = 70, the shape of sampling distrbution of the mean finish time of all female participants is symmetric or bell shaped.
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