a. A statistics practitioner formulated the following hypotheses. H0: = 200 H1: < 200 And
Question:
a. A statistics practitioner formulated the following hypotheses.
H0: µ = 200
H1: µ < 200
And learned that x̄ = 190, n = 9, and σ = 50
Compute the p-value of the test.
b. Repeat part (a) with σ = 30.
c. Repeat part (a) with σ = 10
d. Discuss what happens to the value of the test statistic and its p-value when the standard deviation decreases.
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a Pvalue P Z 60 5 2257 2743 b Pvalue ...View the full answer
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Related Book For 
Statistics For Management And Economics Abbreviated
ISBN: 9781285869643
10th Edition
Authors: Gerald Keller
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