One of the authors observed 500 spins of the roulette wheel at the Mirage Resort and Casino.

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One of the authors observed 500 spins of the roulette wheel at the Mirage Resort and Casino. For each spin, the ball can land in any one of the 38 different slots that are supposed to be equally likely. When computer software (STATDISK) was used to test the claim that the slots are in fact equally likely, the test statistic \2 = 38.232 was obtained.
a. Find the critical value, assuming that the significance level is 0.10.
b. STATDISK displayed a P-value of 0.41331, but suppose you are working only with Table A-4. Given the known value for x1 an^ tne number of categories (38), what would be your estimate for the P-value, based on the table?
c. Write a conclusion about the claim that the 38 results are equally likely.
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Elementary Statistics

ISBN: 9780321225979

3rd Canadian Edition

Authors: Mario F. Triola

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