The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. The expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. If the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?
Answer to relevant QuestionsAccording to the records of an electric company serving the Boston area, the mean electricity consumption during winter for all households is 1650 kilowatt-hours per month. Assume that the monthly electric consumptions ...For a binomial probability distribution, n = 25 and p = .40. a. Find the probability P(8 < x < 13) by using the table of binomial probabilities (Table I of Appendix C). b. Find the probability P(8 < x < 13) by using the ...The percentage of women in the work force has increased tremendously during the past few decades. Whereas only 35% of all employees in the United States in 1970 were women, this percentage is now 49% (Bloomberg Business ...At Jen and Perry Ice Cream Company, the machine that fills 1-pound cartons of Top Flavor ice cream is set to dispense 16 ounces of ice cream into every carton. However, some cartons contain slightly less than and some ...It is known that 15% of all homeowners pay a monthly mortgage of more than $2500 and that the standard deviation of the monthly mortgage payments of all homeowners is $350. Suppose that the monthly mortgage payments of all ...
Post your question