Mathematics

Mathematics, 14.10.2019 19:30, kie27

Asample of restaurants in a city shows that the average cost of an appetizer is $6.32 with a standard deviation of $0.47. a brand new restaurant wants to get noticed by offering appetizers for a much lower price. to determine the lower price, should the formula use a z-value that is greater than or less than -1?

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Mathematics, 10.07.2019 06:10, SisterMina

Asample of restaurants in a city showed that the average cost of a glass of iced tea is $1.25 with a standard deviation of 7¢. if a new restaurant charges a price for iced tea that has a z-value of -1.25, then what is the tea’s actual cost?

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Mathematics, 31.08.2019 10:00, stodd9503

Asample of restaurants in a city showed that the average cost of a glass of iced tea is $1.25 with a a standard deviation of 7¢. three of the restaurants charge 95¢, $1.00, and $1.35. determine the z-value for each restaurant.

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Mathematics, 04.10.2019 23:20, TianaTheSquid

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Mathematics, 30.10.2019 05:31, angelinaranee15

Suppose kristen is researching failures in the restaurant business. in the city where she lives, the probability that an independent restaurant will fail in the first year is 32%. she obtains a random sample of 72 independent restaurants that opened in her city more than one year ago and determines if each one had closed within a year. what are the mean and standard deviation of the number of restaurants that failed within a year? give your answers precise to two decimal places.

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