A pizza shop claims its average home delivery time is 22 minutes. A sample of 40 deliveries had a sample average of 23.7 minutes. Assume the population standard deviation for the shop's deliveries is 5.2 minutes. Complete parts a and b below. a. Is there support for the shop's claim that the population mean is 22 minutes, using the 5% rule? Select the correct choice below and fill in the answer box within your choice. (Type an integer or decimal rounded to four decimal places as needed) O A. The probability P (x2 23.7) =| This indicates that the probability of a sample average of 23.7 minutes is less than 5%, contradicting the shop's claim. O B. The probability P (x 2 23.7) = . This indicates that the probability of a sample average of 23.7 minutes is greater than 5%, supporting the shop's claim.

A pizza shop claims its average home delivery time is 22 minutes. A sample of 40 deliveries had a sample average of 23.7 minutes. Assume the population standard deviation for the shop's deliveries is 5.2 minutes. Complete parts a and b below. a. Is there support for the shop's claim that the population mean is 22 minutes, using the 5% rule? Select the correct choice below and fill in the answer box within your choice. (Type an integer or decimal rounded to four decimal places as needed) O A. The probability P (x2 23.7) =| This indicates that the probability of a sample average of 23.7 minutes is less than 5%, contradicting the shop's claim. O B. The probability P (x 2 23.7) = . This indicates that the probability of a sample average of 23.7 minutes is greater than 5%, supporting the shop's claim.

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter8: Sequences, Series, And Probability

Section8.CT: Chapter Test

Problem 24CT: Show the sample space of the experiment: toss a fair coin three times.

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