Noodles and Company tested consumer reaction to two
spaghetti sauces. Each of 70 judges rated both sauces on a scale of 1 (worst)
to 10 (best) using several taste criteria. To correct for possible bias in
tasting order, half the judges tasted Sauce A first, while the other half
tasted Sauce B first. Actual results are shown below for overall liking. (a)
Calculate the mean and standard deviation for each sample. (b) Calculate the
coefficient of variation for each sample. (c) What is your conclusion about
consumer preferences for the two sauces? (Source: Noodles and Company)
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