Question

# A health inspector was interested in determining if the noise levels of hospital                   corridors in...

A health inspector was interested in determining if the noise levels of hospital

corridors in an urban area is greater than 59 decibels. To test this, the noise levels at

84 randomly chosen hospitals from the urban area were measured in decibels. The

sample mean noise level was 61.2 decibels, and the population standard deviation is

7.9 decibels. Use the five step method to test the inspectors claim using α = .025.

#### Homework Answers

Answer #1

To Test :-

H0 :-

H1 :-

Test Statistic :-

Z = 2.5523   2.55

Test Criteria :-
Reject null hypothesis if

Result :- Reject null hypothesis

There is sufficient evidence to support the claim that the noise levels of hospital corridors in an urban area is greater than 59 decibels.

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