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Elementary Statistics: A Step by Step Approach | 7th Edition | ISBN: 9780073534978 | Authors: Allan G. Bluman
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Speeding Tickets A motorist claims that the South Boro Police issue an average of 60

Chapter 8, Problem 24

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QUESTION:

Speeding Tickets A motorist claims that the South Boro Police issue an average of 60 speeding tickets per day. These data show the number of speeding tickets issued each day for a period of one month. Assume s is 13.42. Is there enough evidence to reject the motorists claim at a 0.05? Use the P-value method. 72 45 36 68 69 71 57 60 83 26 60 72 58 87 48 59 60 56 64 68 42 57 57 58 63 49 73 75 42 63

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QUESTION:

Speeding Tickets A motorist claims that the South Boro Police issue an average of 60 speeding tickets per day. These data show the number of speeding tickets issued each day for a period of one month. Assume s is 13.42. Is there enough evidence to reject the motorists claim at a 0.05? Use the P-value method. 72 45 36 68 69 71 57 60 83 26 60 72 58 87 48 59 60 56 64 68 42 57 57 58 63 49 73 75 42 63

ANSWER:


Null hypothesis: The mean number of tickets issued is 60

Alternative hypothesis: The mean number of tickets issued is not 60

Assumptions:

The population is a normal distribution
The sample size is greater than 30

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