A Local Eat-In Pizza Restaurant Wants to Investigate the Possibility

question 23

Multiple Choice

A local eat-in pizza restaurant wants to investigate the possibility of starting to deliver pizzas. The owner of the store has determined that home delivery will be successful only if the average time spent on a delivery does not exceed 30 minutes. The owner has randomly selected 17 customers and delivered pizzas to their homes in order to test whether the mean delivery time actually exceeds 30 minutes. What assumption is necessary for this test to be valid?

• A) The population of delivery times must have a normal distribution.
• B) The population variance must equal the population mean.
• C) The sample mean delivery time must equal the population mean delivery time.
• D) None. The Central Limit Theorem makes any assumptions unnecessary.

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Acknowledge how school personnel can contribute to a positive school climate.

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Definitions:

Physical Distribution

The activities involved in moving goods from the point of production to the point of consumption.

Mean Absolute Deviation

A statistical measure used to quantify the spread or variability in a data set, indicating the average absolute difference from the mean.

MAD

Mean Absolute Deviation, a measure used in statistics to quantify the average absolute dispersion or deviation from the mean or average.