Answer the following:According to the records of an electric company serving the Boston area, the mean electric consumption for all households duringwinter is 1650 kilowatt-hours per month. Assume that the monthly electric consumptions during winter by all households in thisarea have a normal distribution with a mean of 1650 kilowatt-hours and a standard deviation of 320 kilowatt-hours. Whatpercentage of the households in this area have a monthly electric consumption of 1851 to 1937 kilowatt-hours?Round your answer to two decimal places.P = i%The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends morethan a certain amount per visit at this supermarket. The expectation of the management is that after this promotional policy isadvertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $110 and a standarddeviation of $25.64. If the management decides to give free gifts to all those customers who spend more than $160 at thissupermarket during a visit, what percentage of the customers are expected to get free gifts?Round your answer to two decimal places.% of the customers are expected to get free gifts.One of the cars sold by Walt's car dealershipis a very popular subcompact car called the Rhino. The final sale price of the basicmodel of this car varies from customer to customer depending on the negotiating skills and persistence of the customer. Assumethat these sale prices of this car are normally distributed with a mean of $19600 and a standard deviation of $360.Round your answers to 2 decimal places.a. Dolores paid $19154 for her Rhino. What percentage of Walt's customers paid less than Dolores for a Rhino?%b. Cuthbert paid $20118 for a Rhino. What percentage of Walt's customers paid more than Cuthbert for a Rhino?The pucks used by the National Hockey League for ice hockey must weigh between 5.5 and 6.0 ounces. Suppose the weights ofpucks produced at a factory are normally distributed with a mean of 5.63 ounces and a standard deviation of 0.13 ounces. Whatpercentage of the pucks produced at this factory cannot be used by the National Hockey League?Round your answer to two decimal places.The percentage of pucks that cannot be used is i%.Tommy Wait, a minor league baseball pitcher, is notorious for taking an excessive amount of time between pitches. His timesbetween pitches are normally distributed with a mean of 35 seconds and a standard deviation of 3.5 seconds. What percentage ofhis times between pitches is longer than 40.60 seconds?Use Table IV in Appendix C to compute the probabilities.Round your answer to two decimal places.The percentage - i%

Name: Answer the following:According to the records of an electric company
Uploaded: 2024-03-20T07:07:12.000Z
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Description: Answer the following:According to the records of an electric company serving the Boston area, the mean electric consumption for all households duringwinter is 1650 kilowatt-hours per month. Assume that the monthly electric consumptions during winter

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