Question

In: Statistics and Probability

2.         a.         Find a 98% confidence interval for the true mean of a population if a sample of     ...

2.         a.         Find a 98% confidence interval for the true mean of a population if a sample of     

            52 results in a mean of 100. Assume the population standard deviation is 12.

b.        Assume now that the same results occurred, the population was normal, and the

            sample size was reduced to 10.

c.        Repeat problem 2b assuming that the population standard deviation was unknown, and

             “s” was 12.

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