How to conclude the correct sample size


Test for single mean.

1. An aircraft manufacturer is attempting to establish if the average leg length of adult male has changed from 44". A sample of 81 men was selected randomly and the average length was found to be 45.5", with a standard deviation of 5.5". Test the null hypothesis that the average leg length of the adult male is 44", at a = 0.05.

2. If Z = 1.96, s = 3, and E = 1, conclude the correct sample size.

a. 150
b. 35
c. 6
d. 12

Request for Solution File

Ask an Expert for Answer!!
Basic Statistics: How to conclude the correct sample size
Reference No:- TGS019947

Expected delivery within 24 Hours