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Assume that X has a normal distribution, and find the indicated probability. 15) 15) The mean is = 15.2 and the standard deviation is o = 0.9. Find the probability that X is greater than 16.1. D) 0.1550 A) 0.1587 B) 0.8413 C) 0. 1357 Solve the problem. Round to the nearest tenth unless indicated otherwise. 16) 16) Human body temperatures are normally distributed with a mean of 98.20 F and a standard deviation of 0.62 F. Find the temperature that separates the bottom 93% from the top 7%. Round to the nearest hundredth of a degree C ) 98.78. F D) 97.28.F A) 98.40OF B) 99.11 OF Solve the problem. 17) Human body temperatures are normally distributed with a mean of 98.20 F and a standard 17) deviation of 0.62 F. If 19 people are randomly selected, find the probability that their mean body temperature will be less than 98.50.F. A) 0.3343 B) 0.4826 C) 0.9825 D) 0.0833 18) The following confidence interval is obtained for a population proportion, p: (0.399, 0.437). Use 18) these confidence interval limits to find the margin of error, E. A) 0.020 B) 0.038 C) 0.019 D) 0.017 Use the given degree of confidence and sample data to construct a confidence interval for the population proportion p. 19) n = 56, x = 30; 95% confidence 19) A) 0.426