Please show work on how to solve this problem. sample of 5 agreement specifying

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Please show work on how to solve this problem.

sample of 5 agreement specifying hours of operation. Find the p-value for this test, and determine sufficient evidence exists to assume that the rate of control of operating hours by franchisors in the state without a fair-practices act exceeds the national rate for the retail gasoline industry 0 franchise gasoline dealerships showed that 20 involved a requirement in the f 9.40 The manufacturer of a pollution control device claims that, on the average, when the device is attached to an automobile exhaust system, carbon emissions will not exceed 10 parts per million (ppm). In an experiment involving the application of the pollution control devige to 40 automobiles found to average 11 ppmstandard deviation3.6 ppm. iltetorete intestol Do the data provide sufficient evidence to refute the manufacturer's

Explanation / Answer

Solution:

Test Hypothesis:

H0: 10
H1: > 10
Table value of z ate 0.10 level is 1.28

If the calculated z value < -1.645 reject the null hypothesis

z = x- //sqrt(n)
= (11-10)/3.6/sqrt(40)
= 1.7568

Calculated z = 1.7568 < 1.28

The null hypothesis is rejected

The data provide sufficient evidence to support the manufacturer's claim that carbon emissions will not exceed 10 parts per million(ppm).

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