Question: The college cafeteria manager claims that 90 of cafeteria customers
The college cafeteria manager claims that 90% of cafeteria customers are satisfied with the range of food served and prices. Suppose that in a random sample of 500 cafeteria customers, 438 say they are satisfied with the cafeteria. Does the sample result suggest that fewer than 90% of the cafeteria's customers are satisfied with the range of food served and prices?
Answer to relevant QuestionsA survey of the morning beverage market shows that the primary breakfast beverage of 17% of Americans is milk. A Canadian dairy company believes the figure is higher in Canada. The company contacts a random sample of 500 ...A manufacturer receives large shipments of keyboards that will be sold with its computers. The computer manufacturer does not accept any shipments unless there is evidence that fewer than 5% of the keyboards are ...A drug company has developed a new formulation of a popular pain reliever. It appears that the new formula provides quicker pain relief than the old formula, which provided relief in 15 minutes, on average. The company wants ...A tourist attraction gets over 50,000 visitors a year, but traffic has declined over the last few years. The manager has recently refurbished the buildings, added new activities, and generally spruced up the facility. A ...The survey of drugstore customers mentioned in Exercise 18 also includes data about staff friendliness. Based on the survey, can Lynda Parks conclude that fewer than 5% of customers rate staff friendliness as "poor"? Use a ...
Post your question