Question

If Upper X overbar equals 94X=94​, Upper S equals 23S=23​, and n equals 16n=16​, and assuming that the population is normally​ distributed, construct a 90 %90% confidence interval estimate of the population​ mean, muμ.

Answer 1

X=94, n=16, s=23

To find :

z = (X-)/s

z score for 90% confidence is 1.65

1.65= (94-)/23

= 56.05