Question: A manufacturing company is interested in determining whether a significant difference exists between the variance of the number of units produced per day by one machine operator and the similar variance for another machine operator. The file P19 21.xls contains the number of units produced by operator 1 and operator 2 , respectively, on each of 25 days. Note that these two sets of days are not necessarily the same, so you can assume that the two samples are independent of one another.

1. Do these sample data indicate a statistically significant difference at \(\alpha=0.10\) ? Explain your answer. b. If your conclusion in part a were incorrect, would you have committed a type I or type II error? Explain.
   c. At which values of \(\alpha\) could you not reject the null hypothesis?
   
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