A consumer products company is formulating a new shampoo and is interested in foam height (in millimeters). Foam height
Posted: Wed May 11, 2022 4:02 pm
A consumer products company is formulating a new shampoo and is interested in foam height (in millimeters). Foam height is approximately normally distributed and has a standard deviation of 20 millimeters. The company wishes to test Hou = 175 millimeters versus H1: > 175 millimeters, using the results of n = 10 samples a) Find the type I error probability a if the critical region is Xbar> 185. Answer in 4 decimal places. b) What is the probability of type Il error if the true foam height is 185 millimeters? Answer in 1 decimal place. c) Find ß for the true mean of 195 millimeters. Answer in 3 decimal places.