Question: Grade Local Chain Total 2 15.28 A 182 149 331 df 2 B 77 51 128 N 511 Pending 15 37 52 p 0.0005 Total
Grade Local Chain Total 2 15.28 A 182 149 331 df 2 B 77 51 128 N 511 Pending 15 37 52 p 0.0005 Total 274 237 511 0.17 Cramer's V 0.17 Lambda 0 Overall, how many restaurants have a grade of pending? Overall, what proportion of restaurants have a grade of pending? What proportion of local restaurants have a grade of pending? What proportion of chain restaurants have a grade of pending? For purposes of calculating df, how many rows does the table have? If you crossed off the local column and the A row, how many cells would be left in the table? Using alpha = .05, does the test of independence support the hypothesis that the two kinds of restaurants differ? (Y or N) Based on phi and Cramer's V, how would you describe the strength of association: W=weak, M=moderate, S=strong. How many errors would you make if you predicted the modal grade overall? How many errors would you make if you predicted the model grade within columns? Does knowing the type of restaurant help us predict their grade based on modal values? (Y or N) Which type of restaurant has a larger proportion of pending grades? (L or C)
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