Question

ANOVA, CHI-SQUARE AND NONPARAMETRIC TESTS Contingency tables: Expected frequencies Keira The following contingency table gives a summary of the data from 2000 trials of a visual experiment. Each of the trials was performed by either a colorblind participant or a non-colorblind participant. Each trial resulted in a "hit, a miss," a "alse alarm," or a "correct rejection. In the cells of the table are the respective observed frequencies, and three of the cells also have blanks. Fill in these blanks with the frequencies expected if the two variables, color vision of participant and trial outcome, are independent. Round your responses to at least two decimal places. Trial outcome Miss False alarm Correct rejection Color vision of participant Colorblind

Answer 1

From the given information,

For 77,

Expected frequency=(196*707)/2000=69.286

For 35,

Expected frequency=(196*288)/2000=28.224

For 667,

Expected frequency=(1804*717)/2000=646.734

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