Responsibility for the fixed overhead volume variance is a. usually assigned to the production department. b. usually assigned to top management. c. not assigned because fixed overhead costs do not change with activity changes. d. usually assigned to the planning department. e. None of these choices are correct.

How do the percentages of the 65 customer satisfaction ratings in that actually fall into the intervals [formula62.mml ± s], [formula62.mml ± 2s], and [formula62.mml ± 3s] compare to those given by the empirical rule? do these comparisons indicate that the statistical inferences you made in parts b and c are reasonably valid? (round your answers to the nearest whole number. omit the "%" sign in your