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

Letxrepresent the dollar amount spent on supermarket impulse buying in a 10-minute (unplanned) shopping interval. Based on a certain article, the mean of thexdistribution is about$32and the estimated standard deviation is about$9.

(a) What is the probability thatxis between$30and$34? (Round your answer to four decimal places.)

(b) Let us assume thatxhas a distribution that is approximately normal. What is the probability thatxis between$30and$34? (Round your answer to four decimal places.)

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