t* A researcher collects a sample of 25 measurements from a population and wants to find a 99% confidence interval.
a. What value should he use for t*? (Recall that df = n - 1 for a one sample t-interval.) Use the table given for Exercise.
b. Why is the answer to this question larger than the answer to Exercise 9.25?
Exercise
t* A researcher collects one sample of 27 measurements from a population and wants to find a 95% confidence interval. What value should he use for t*? (Recall that df = n - 1 for a one-sample t-interval.)
