Q1) Create the indicated confidence interval for population mean µ using

(A) a t- distribution .

(B) if you had incorrectly used normal distribution, which interval would be wider?

           C=0.95 , =14.3 , s=4.0 ,n= 6

a) 95% confidence interval using a t- distribution is.........

b) If you had incorrectly used normal distribution which interval would be wider?

i) t- distribution has the wider interval

ii) Normal distribution has the wider interval