A pizza delivery chain advertises that it will deliver your pizza in 40 minutes from when the order is placed. Being a skeptic, you decide to test and see if the mean delivery time is actually more than 40 minutes. For the simple random sample of 8 customers who record the amount of time it takes for each of their pizzas to be delivered, the mean is 47.6 minutes with a standard deviation of 11.5 minutes. Assume that the population distribution is approximately normal. Perform a hypothesis test using a 0.005 level of significance. Step 2 of 3: Compute the value of the test statistic. Round your answer to three decimal places.
A pizza delivery chain advertises that it will deliver your pizza in 40 minutes from when the order is placed. Being a skeptic, you decide to test and see if the mean delivery time is actually more than 40 minutes. For the simple random sample of 8 customers who record the amount of time it takes for each of their pizzas to be delivered, the mean is 47.6 minutes with a standard deviation of 11.5 minutes. Assume that the population distribution is approximately normal. Perform a hypothesis test using a 0.005 level of significance. Step 2 of 3: Compute the value of the test statistic. Round your answer to three decimal places.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
Question
![A pizza delivery chain advertises that it will deliver your pizza in 40 minutes from when the order is placed. Being a skeptic, you decide to test and see if the mean delivery
time is actually more than 40 minutes. For the simple random sample of 8 customers who record the amount of time it takes for each of their pizzas to be delivered, the
mean is 47.6 minutes with a standard deviation of 11.5 minutes. Assume that the population distribution is approximately normal. Perform a hypothesis test using a
0.005 level of significance.
Step 2 of 3: Compute the value of the test statistic. Round your answer to three decimal places.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb746646f-39dd-4312-845d-6abd1eeee77e%2F96dc8ad2-9339-486d-a582-7a2f15e7b216%2Fgep1e5e_processed.png&w=3840&q=75)
Transcribed Image Text:A pizza delivery chain advertises that it will deliver your pizza in 40 minutes from when the order is placed. Being a skeptic, you decide to test and see if the mean delivery
time is actually more than 40 minutes. For the simple random sample of 8 customers who record the amount of time it takes for each of their pizzas to be delivered, the
mean is 47.6 minutes with a standard deviation of 11.5 minutes. Assume that the population distribution is approximately normal. Perform a hypothesis test using a
0.005 level of significance.
Step 2 of 3: Compute the value of the test statistic. Round your answer to three decimal places.
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