Karl Pearson devised the chi-squared goodness-of-fit test partly to analyze data from an experiment to analyze whether
Question:
a. For the null hypothesis, what is the probability for each pocket?
b. For an experiment with 3700 spins of the roulette wheel, find the expected number of times each pocket is selected.
c. In the experiment, the 0 pocket occurred 110 times. Show the contribution to the X2 statistic of the results for this pocket.
d. Comparing the observed and expected counts for all 37 pockets, we get X2 = 34.4 Specify the df value, and indicate whether there is strong evidence that the roulette wheel is not balanced.
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Related Book For
Statistics The Art And Science Of Learning From Data
ISBN: 9780321755940
3rd Edition
Authors: Alan Agresti, Christine A. Franklin
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