Lyon, Inc Manufactures Flash Drives on Two Different Manufacturing Processes

Short Answer

Lyon, Inc. manufactures Flash drives on two different manufacturing processes. Because the management of this company is interested in determining if process 1 takes less manufacturing time, they selected independent samples from each process. The results of the samples are shown below.
$\begin{array}{lll}&\text { Process } 1&\text { Process } 2\\\text { Sample Size } & 27 & 22 \\\text { Sample Mean in minutes) } & 10 & 14 \\\text { Sample Variance } & 16 & 25\end{array}$
a. State the null and alternative hypotheses.
b. Determine the degrees of freedom for the t test.
c. Compute the test statistic
d. At 95% confidence, test to determine if there is sufficient evidence to indicate that process 1 takes a significantly shorter time to manufacture the Flash drives.