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A sample of 34 observations is selected from a normal population. The sample mean is 30,...

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Statistics

A sample of 34 observations is selected from a normalpopulation. The sample mean is 30, and the population standarddeviation is 3. Conduct the following test of hypothesis using the0.05 significance level:

H0: μ = 31

H1: μ ≠ 31

a. Is this a one- or two-tailed test?

(Click to select)  One-tailedtest  Two-tailed test

b. What is the decision rule?


Reject H0 and accept H1when z does not lie in the regionfrom  to  .

c. What is the value of the test statistic?(Negative answer should be indicated by a minus sign. Roundthe final answer to 2 decimal places.)

Value of the test statistic          

d. What is your decision regardingH0?

(Click to select)  Fail toreject  Reject  H0

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

The p-value is            .

Answer & Explanation Solved by verified expert
3.7 Ratings (496 Votes)
Solution 31303n 34a This is the two tailed test The null and alternative hypothesis is H0    See Answer
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