Let x represent the dollar amount spent on supermarket impulse buying in a 10 minute (unplanned) shopping interval Based on a Denver Post article, the mean of the x distribution is about $20 and the estimated standard deviation is about $7 (c) Let us assume that x has a distribution that is approximately normal What is the probability that x is between $18 and $22

Question: Let x represent the dollar amount spent on supermarket impulse buying in a 10-minute (unplanned) shopping interval. Based on a Denver Post article, the mean

Let x represent the dollar amount spent on supermarket impulse buying in a 10-minute (unplanned) shopping interval. Based on a Denver Post article, the mean of the x is about $20 and the estimated standard deviation is about $7.

(c) Let us assume that x has a distribution that is approximately normal. What is the probability that x is between $18 and $22?

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