Question: Registrar's Office personnel conducted a comparative study targeting differences between two groups of respondents taking undergraduate courses in STAT and History. Records were collected independently

Registrar's Office personnel conducted a comparative study targeting differences between two groups of respondents taking undergraduate courses in STAT and History. Records were collected independently under assumption that scores in each group are normally distributed with unknown parameters. It was also assumed that both variances, (01) and (02)2 were entirely unknown. Sample summaries are shown in the table below.

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