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.
Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter29: Tolerance, Clearance, And Interference
Section: Chapter Questions
Problem 16A: Spacers are manufactured to the mean dimension and tolerance shown in Figure 29-12. An inspector...
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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.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F109e3359-7536-4f6f-b048-0c540031cdc1%2F1063b2f1-1edb-4b8b-9867-38ed2abb2714%2F2fq8ykf_processed.png&w=3840&q=75)
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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