SOLUTION: Construct a 95% confidence interval for the age of viers of the jimmy fallon show. Jimmy Fallon: 45 51 57 46 38

Algebra ->  Probability-and-statistics -> SOLUTION: Construct a 95% confidence interval for the age of viers of the jimmy fallon show. Jimmy Fallon: 45 51 57 46 38       Log On


   

Question 974085: Construct a 95% confidence interval for the age of viers of the jimmy fallon show.
Jimmy Fallon:
45
51
57
46
38
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
Mean = 47.4
sd=7.09
n=5
SE=7.09/sqrt(5)=3.17 ;; Need t-distribution with 4 degrees of freedom, since estimating sample distribution sd. Also are assuming normal distribution.
95% CI= +/- 2.776*3.17 which is +/-8.80
(38.6,56.2)