Question: A researcher thinks there will be a decrease in average ratings of alertness from 1 p.m. to 3 p.m. Select the appropriate one-tailed null hypothesis

A researcher thinks there will be a decrease in average ratings of alertness from 1 p.m. to 3 p.m. Select the appropriate one-tailed null hypothesis for the paired-samples t-test, with the 1 p.m. ratings denoted as Time 1 and the 3 p.m. ratings denoted as Time 2

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