An issue with legalization of medical marijuana is"diversion", the process in which medical marijuana prescribed for one person isgiven, traded, or sold to someone who is not registered for medical marijuana use. The mean number of days that 116 adolescents in substance abuse treatment used medical marijuana in the last six months was 102.84. Assume the population standard deviation is 34 days. Complete parts

a. Find a 99% confidence interval for the mean number ofdays, , of diverted medical marijuana use in the last 6 months of all adolescents in substance abuse treatment.

The 99% confidence interval for is from? (the answer is 94.71 days to 110.97 days.

Find a 90% confidence interval for the mean number ofdays, , of diverted medical marijuana use in the last 6 months of all adolescents in substance abuse treatment.

The 90% confidence interval for is from

days to---------- ? days --------- ?

(Round to two decimal places asneeded.)