A test preparation company claims that more than 50% of the students who take their GRE prep
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A test preparation company claims that more than 50% of the students who take their GRE prep course improve their scores by at least 10 points.
a) Is the alternative to the null hypothesis more naturally one-sided or two-sided? Explain.
b) A test run with randomly selected participants gives a P-value of 0.981. What do you conclude?
c) What would you have concluded if the P-value had been 0.019?
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a The alternative to the null hypothesis is onesided They claim that more ...View the full answer
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Related Book For 
Business Statistics
ISBN: 9780134705217
4th Edition
Authors: Norean Sharpe, Richard Veaux, Paul Velleman
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