Supermarket shoppers. A marketing consultant observes 50 consecutiveshoppers at a
Chapter 0, Problem 16.39(choose chapter or problem)
Supermarket shoppers. A marketing consultant observes 50 consecutiveshoppers at a supermarket. Here are the amounts (in dollars) spent in the store bythese shoppers:3.11 8.88 9.26 10.81 12.69 13.78 15.23 15.62 17.00 17.3918.36 18.43 19.27 19.50 19.54 20.16 20.59 22.22 23.04 24.4724.58 25.13 26.24 26.26 27.65 28.06 28.08 28.38 32.03 34.9836.37 38.64 39.16 41.02 42.97 44.08 44.67 45.40 46.69 48.6550.39 52.75 54.80 59.07 61.22 70.32 82.70 85.76 86.37 93.34(a) Why is it risky to regard these 50 shoppers as an SRS from the population ofall shoppers at this store? Name some factors that might make 50 consecutiveshoppers at a particular time unrepresentative of all shoppers.(b) Make a stemplot of the data. The stemplot suggests caution in using thez procedures for these data. Why?
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