Practice question

MCQ

Question

A random sample of expenditure on 20 patients from PGI and another random sample of expenditure on 25 patients from Fortis Hospital was selected. If our interest was to know whether, on an average, expenditure incurred per patient in the two hospitals was comparable or not, then the appropriate test procedure would be

Options

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Z-test Paired t-test Unpaired t-test Correct Kendall’s Concordance analysis

Explanation

Two independent random samples from different hospitals require comparison of means using unpaired or independent samples t-test. Paired test needs matched pairs, Z-test needs large known variance. Here hospital groups are unrelated, so two-sample t-test for unequal samples is appropriate.

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