Past experience indicates that the time required for high school seniors to complete a standardized test is
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Past experience indicates that the time required for high school seniors to complete a standardized test is a normal random variable with a standard deviation of 6 minutes. Test, the hypothesis that 0 = 6 against the alternative that, IT < 6 if a random sample of 20 high school seniors has a standard deviations s = 4.51. Use a 0.05 level of significance.
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The hypotheses are 19451 36 Ho 6 H 0 6 Computation x 1074 Us...View the full answer
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Related Book For
Probability & Statistics For Engineers & Scientists
ISBN: 9780130415295
7th Edition
Authors: Ronald E. Walpole, Raymond H. Myers, Sharon L. Myers, Keying
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