An education researcher claims that the overall average score of 15-year-old students on an international mathematics literacy
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An education researcher claims that the overall average score of 15-year-old students on an international mathematics literacy test is 494. You want to test this claim. You randomly select the average scores of 33 countries. The results are listed below. At α = 0.05, do you have enough evidence to reject the researcher’s claim?
(a) Identify the claim and state H0 and Ha,
(b) Use technology to find the P-value,
(c) Decide whether to reject or fail to reject the null hypothesis, and
(d) Interpret the decision in the context of the original claim. Assume the population is normally distributed.
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Related Book For
Elementary Statistics Picturing The World
ISBN: 9780134683416
7th Edition
Authors: Ron Larson, Betsy Farber
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