You may need to use the appropriate appendix table or technologyto answer this question.
A simple random sample with
n = 59
provided a sample mean of 26.5 and a sample standard deviationof 4.4. (Round your answers to one decimal place.)
(a)
Develop a 90% confidence interval for the population mean.
(b)
Develop a 95% confidence interval for the population mean.
(c)
Develop a 99% confidence interval for the population mean.