Acme restaurant would like to determine the average amount that a regular customer spends every time...

 

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Acme restaurant would like to determine the average amount that a regular customer spends every time they come in for dinner. Based on previous studies, the dinner bill distribution is expected to be normal. A sample of 8 of the regular customers revealed the following bills (in $) during their last visit to the restaurant: 46.50 40.35 55.80 34.20 32.90 53.00 25.75 38.60 a) What is the point estimate of the population mean (restaurant dinner bill) to the nearest cent? (3) (Round the final answer to decimal places.) Point estimate is $ 40.89 b) At a 98% confidence level, what is the range of the dinner bill (to the nearest cent) per visit of a regular customer at Acme restaurant? (4/4) (Round the final answers to 2 decimal places.) Confidence interval between (LCL) $ and (UCL) $[ Maybe (not enough information) None of the choices. c) Is the restaurant's claim that the regular customers spend $45.00 per visit reasonable? (2) Yes No Acme restaurant would like to determine the average amount that a regular customer spends every time they come in for dinner. Based on previous studies, the dinner bill distribution is expected to be normal. A sample of 8 of the regular customers revealed the following bills (in $) during their last visit to the restaurant: 46.50 40.35 55.80 34.20 32.90 53.00 25.75 38.60 a) What is the point estimate of the population mean (restaurant dinner bill) to the nearest cent? (3) (Round the final answer to decimal places.) Point estimate is $ 40.89 b) At a 98% confidence level, what is the range of the dinner bill (to the nearest cent) per visit of a regular customer at Acme restaurant? (4/4) (Round the final answers to 2 decimal places.) Confidence interval between (LCL) $ and (UCL) $[ Maybe (not enough information) None of the choices. c) Is the restaurant's claim that the regular customers spend $45.00 per visit reasonable? (2) Yes No

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