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The manager of a fast-food restaurant claims that the average waiting time at their drive-through from the time an order is placed to the time the order is received does not exceed 180 s. A customer would like to test this claim. She conducted an investigation by taking a random sample of ten orders and measured the waiting times (in seconds). The results are as follows. 208 193 175 195 170 167 195 180 186 172 Do an appropriate test of hypothesis to determine if the manager's claim is valid at 5% level of significance. Assume that the waiting times follow the normal distribution. A. Perform a complete test of hypothesis. B. Select here the conclusion for this test of hypothesis. There is no sufficient evidence to say that the average waiting time at their drive-through from the time an order is placed to the time the order is received exceeds 180 s. The manager's claim can not be rejected. The manager's claim is false. The average waiting time at their drive-through from the time an order is placed to the time the order is received exceeds 180 s.

The manager of a fast-food restaurant claims that the average waiting time at their drive-through from the time an order is placed to the time the order is received does not exceed 180 s. A customer would like to test this claim. She conducted an investigation by taking a random sample of ten orders and measured the waiting times (in seconds). The results are as follows. 208 193 175 195 170 167 195 180 186 172 Do an appropriate test of hypothesis to determine if the manager's claim is valid at 5% level of significance. Assume that the waiting times follow the normal distribution. A. Perform a complete test of hypothesis. B. Select here the conclusion for this test of hypothesis. There is no sufficient evidence to say that the average waiting time at their drive-through from the time an order is placed to the time the order is received exceeds 180 s. The manager's claim can not be rejected. The manager's claim is false. The average waiting time at their drive-through from the time an order is placed to the time the order is received exceeds 180 s.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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The manager of a fast-food restaurant claims that the average waiting time at their drive-through from the time an order is placed to the time the order is received does not exceed 180 s. A customer would like to test this claim. She conducted an investigation by taking a random sample of ten orders and measured the waiting times (in seconds). The results are as follows. 208 193 175 195 170 167 195 180 186 172 Do an appropriate test of hypothesis to determine if the manager's claim is valid at 5% level of significance. Assume that the waiting times follow the normal distribution. A. Perform a complete test of hypothesis. B. Select here the conclusion for this test of hypothesis. There is no sufficient evidence to say that the average waiting time at their drive-through from the time an order is placed to the time the order is received exceeds 180 s. The manager's claim can not be rejected. The manager's claim is false. The average waiting time at their drive-through from the time an order is placed to the time the order is received exceeds 180 s.
Transcribed Image Text:The manager of a fast-food restaurant claims that the average waiting time at their drive-through from the time an order is placed to the time the order is received does not exceed 180 s. A customer would like to test this claim. She conducted an investigation by taking a random sample of ten orders and measured the waiting times (in seconds). The results are as follows. 208 193 175 195 170 167 195 180 186 172 Do an appropriate test of hypothesis to determine if the manager's claim is valid at 5% level of significance. Assume that the waiting times follow the normal distribution. A. Perform a complete test of hypothesis. B. Select here the conclusion for this test of hypothesis. There is no sufficient evidence to say that the average waiting time at their drive-through from the time an order is placed to the time the order is received exceeds 180 s. The manager's claim can not be rejected. The manager's claim is false. The average waiting time at their drive-through from the time an order is placed to the time the order is received exceeds 180 s.
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