Can’t read the numbers: Because of printer failure, none of the observed frequencies in the following table were printed, but some of the row and column totals were. Is it possible to construct the corresponding table of expected frequencies from the information given? If so, construct it. If not, describe the additional information you would need.
In a hypothetical study, four hospitals were compared with regard to the outcome of a particular type of surgery. For each patient at each hospital, the outcome was classified as Substantial improvement, Some improvement, or No improvement. The results are presented in the following contingency table.
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