Question

Construct the indicated confidence interval for the population mean

muμ

using the​ t-distribution. Assume the population is normally distributed.

cequals=0.90​,

x overbarxequals=12.6,

sequals=0.58​,

nequals=13

Answer 1

12.6   1.78 ( 0.58 13

12.6   0.287

(12.31 , 12.89 )

The 90 % CI For Mean is (12.31 , 12.89 )