Normal temperatures, part II Consider again the statistics about human body temperature in Exercise 23. a) Would a 90% confidence interval be wider or narrower than the 98% confidence interval you...

Normal temperatures, part II Consider again the statistics about human body temperature in Exercise 23.

a) Would a 90% confidence interval be wider or narrower than the 98% confidence interval you calculated before? Explain. (Don’t compute the new interval.)

 b) What are the advantages and disadvantages of the 98% confidence interval?

 c) If we conduct further research, this time using a sample of 500 adults, how would you expect the 98% confidence interval to change? Explain.

d) How large a sample might allow you to estimate the mean body temperature to within 0.1 degrees with 98% confidence?