2. A sample data set, n=110, shows human body temperatures with a mean of 98.4F. The standard deviation is known to be .65F. Determine the confidence interval when using a 90% confidence level. Round all answers to the nearest hundredth.

sample size=____________________

standard deviation=_______________

mean=___________________

z_c=____________________

E=_______________________

endpoints of the confidence interval, least to greatest= _____________and__________________