SOLUTION: Construct a confidence interval for the population mean using a t-distribution: c = 95% m = 17.3 s = 4.1 n = 10. Choose from the intervals listed below. a. (14.37, 20.23)

Algebra ->  Probability-and-statistics -> SOLUTION: Construct a confidence interval for the population mean using a t-distribution: c = 95% m = 17.3 s = 4.1 n = 10. Choose from the intervals listed below. a. (14.37, 20.23)       Log On


   

Question 1056842: Construct a confidence interval for the population mean using a t-distribution:
c = 95% m = 17.3 s = 4.1 n = 10. Choose from the intervals listed below.

a. (14.37, 20.23)
b. (15.37, 20.23)
c. (14.37, 21.23)
d. (13.37, 21.23)
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
95% CI width is t(0.975, df=9)*s/sqrt(n)
=2.262*4.1/sqrt (10)
=2.93
interval is (14.37,20.23)
choice a
Note: the midpoint of the interval should be the mean. That removes two choices immediately.