Question: 1. Human body temperatures are normally distributed with a mean of 98.20F and a standard deviation of 0.62F. If 19 people are randomly selected, find

1. Human body temperatures are normally distributed with a mean of 98.20F and a standard deviation of 0.62F. If 19 people are randomly selected, find the probability that their mean body temperature will be less than 98.0F.

2. Suppose that a random sample of 25 measurements is selected from a population with mean 70 and standard deviation 10. What is the mean and standard deviation of the sampling distribution of the sample mean?

3. A final exam in Math 160 has a mean of 75 with standard deviation 7.8. If 24 students are randomly selected, find the probability that the mean of their test scores is greater than 78.

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