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26 May 2018

A sample of 42 observations is selected from one population with a population standard deviation of 3.1. The sample mean is 101.0. A sample of 52 observations is selected from a second population with a population standard deviation of 4.0. The sample mean is 99.8. Conduct the following test of hypothesis using the 0.04 significance level.

H0 : ?1 = ?2
H1 : ?1 ? ?2

(b)

State the decision rule. (Negative amounts should be indicated by a minus sign. Round your answer to 2 decimal places.)

The decision rule is to reject H0 if z is outside the interval (, ).

(c) Compute the value of the test statistic. (Round your answer to 2 decimal places.)

Value of the test statistic

(e) What is the p-value? (Round your answer to 4 decimal places.)

p-value

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Jarrod Robel
Jarrod RobelLv2
27 May 2018

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