B5. A transport company claimed that on average a lorry covers at least 100 miles distance in one day. Samples of 50 lorries were taken to prove the observation. The average of the sample is 90 miles with a 2.8 standard deviation. Can we conclude at the 0.05 level, that a lorry covers less than 100 miles of Distance? Use the z test approach to test the above hypothesis.
B5. A transport company claimed that on average a lorry covers at least 100 miles distance in one day. Samples of 50 lorries were taken to prove the observation. The average of the sample is 90 miles with a 2.8 standard deviation. Can we conclude at the 0.05 level, that a lorry covers less than 100 miles of Distance? Use the z test approach to test the above hypothesis.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 22SGR
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Question
![B5. A transport company claimed that on average a lorry covers at least 100 miles distance in
one day. Samples of 50 lorries were taken to prove the observation. The average of the sample
is 90 miles with a 2.8 standard deviation. Can we conclude at the 0.05 level, that a lorry covers
less than 100 miles of Distance?
Use the z test approach to test the above hypothesis.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F74cc569a-a165-4ba7-a29a-34fd1c8331a7%2F4c4f36b2-8508-4d58-8fb6-0e4bce62d9b1%2Fugxjxl_processed.jpeg&w=3840&q=75)
Transcribed Image Text:B5. A transport company claimed that on average a lorry covers at least 100 miles distance in
one day. Samples of 50 lorries were taken to prove the observation. The average of the sample
is 90 miles with a 2.8 standard deviation. Can we conclude at the 0.05 level, that a lorry covers
less than 100 miles of Distance?
Use the z test approach to test the above hypothesis.
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