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Suppose you have employed a data set that is normally distributed with a mean of 70 and a standard deviation of 10. Determine the value of x such that 65% of the values are preater than s. 71.5 0 66.1 O 68.8 O 73.9 O * Question A group of medical research wished to estimate the mean maximal strength of a purticular muscle in a certain group of individuals. It is assumed that strength scores are approximately normally distributed with a standard deviation of 12. A sample of 15 subjects who participated in the experiment yielded a mean of 84.3, The 99% confidence interval of the mean maximal strength of this muscle is (73.3 , 94.2) (74.7 , 93.9) O (76.32 , 92.27) (77.2, 91.4) O