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Below is the standard deviation for extreme 10k finish times for a randomly selected group of women and men. Chose the statement that best summarizes
Below is the standard deviation for extreme 10k finish times for a randomly selected group of women and men. Chose the statement that best summarizes the meaning of the standard deviation. Women: s = 0.17 Men: s = 0.21 On average, men's finish times will be 0.21 hours faster than the overall average finish time. The distribution of men's finish times is less varied than the distribution of women's finish times. The distribution of women's finish times is less varied than the distribution of men's finish times. On average, women's finish times will be 0.17 hours less than men's finish times.Find the indicated z-score. Find the zscore for which the area under the standard normal curve to its right is 0.09. 1.26 1.34 1.39 1.45 A sociologist wishes to construct a confidence interval for the mean time spent on a social-networking website each week by students at one college. She selects a random sample of students of size n = 200. How would the width of a 90% confidence interval compare with the width of a 99% confidence interval if both intervals are based on the same sample size. Both intervals have the same width The 99% confidence interval is wider than the 90% confidence interval The 90% confidence interval is wider than the 99% confidence interval
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