Lab Assignment 3

Solution for Example Problem:

a) Ho: µ= 3 pounds

Ha: µ < 3 pounds

b) n = 36

= 2.92 pounds

σ = .18

c) Z=(2.92-3)/[0.18/sqrt(36)]=-2.67. Because Ha contains < we can use number directly from Table A for z=-2.67 which is 0.0038

d) Reject the Null hypothesis (Ho) because P-value < Alpha value (0.0038 < .01)

e) The mean weight of the population of coffee cans is LESS than 3 pounds.