State the null and alternative hypotheses for the following claims (include order of difference if not included). (i) Reaction times on a standard test are slowed down for individuals after taking a new medication. (after − before) (ii) The mean weight loss for each individual after the change in diet was at least 5 pounds. (iii) Insulation does provide a decrease in the mean difference between before insulation heating bills and after insulation heating bills. (before − after)
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(i) The claim states that reaction times are slowed down after taking a new medication, which implies that the reaction time after taking the medication is greater than the reaction time before taking it. Therefore, we will denote the mean reaction time before Show more…
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