An experiment was conducted to compare the filling capability of packaging equipment at

Chapter 10, Problem 10-90

(choose chapter or problem)

An experiment was conducted to compare the filling capability of packaging equipment at two different wineries. Ten bottles of pinot noir from Ridgecrest Vineyards were randomly selected and measured, along with 10 bottles of pinot noir from Valley View Vineyards. The data are as follows (fill volume is in milliliters):Ridgecrest Valley View 755 751 752 753 756 754 757 756 753 753 753 754 755 756 756 755 752 751 755 756 (a) What assumptions are necessary to perform a hypothesistesting procedure for equality of means of these data? Check these assumptions. (b) Perform the appropriate hypothesis-testing procedure to determine whether the data support the claim that both wineries will fill bottles to the same mean volume. (c) Suppose that the true difference in mean fill volume is as much as 2 fluid ounces; did the sample sizes of 10 from each vineyard provide good detection capability when 0.05? Explain your answer.