LIS 4273 Module #5 Assignment
#1. The director of manufacturing at a cookies company needs to determine whether a new machine is able to produce a particular type of cookies according to the manufacturer's specifications, which indicate that cookies should have a mean of 70 and standard deviation of 3.5 pounds. A sample of 49 cookies reveals a sample mean breaking strength of 69.1 pounds. A. State the null and alternative hypothesis - Null Hypothesis (H0) = μ= 70 means the mean breaking strength is 70 pounds. Alternative Hypothesis (H1): μ =/ 70 means the mean breaking strength is not 70 pounds. B. Is their evidence that the machine is not meeting the manufacturer's specifications for average strength? Use a 0.05 level of significance - The Z-Score is -1.8, and the p-value is 0.07186. When the significance level is 0.05, the critical z-scores for the two-tailed test are -1.96 and 1.96. The null hypoth...