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A random sample of 12 observations is selected from a

Given the following hypothesis:

H1: π =400

H0: π = (not equal) 400

(It is not the pi symbol it is the population proportion symbol above)

A random sample of 12 observations is selected from a normal population. The sample mean was 407 and the sample standard deviation 6. Using the .01 significance level:

a. State the decision rule.

b. Compute the value of the test statistic.

c. What is your decision regarding the null hypothesis?

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