A random sample of 26 people employed by the Florida state authority established they earned an average wage (including benefits) of $69.00 per hour. The sample standard deviation was $5.78 per hour. (Uset Distribution Table.)

a.	What is the best estimate of the population mean?

Estimated population mean

$

b.	Develop a 98% confidence interval for the population mean wage (including benefits) for these employees.(Round your answers to 2 decimal places.)

Confidence interval for the population mean wage is betweenand.

c.	How large a sample is needed to assess the population mean with an allowable error of $1.00 at 99% confidence?(Round up your answer to the next whole number.)

Sample size