Hector Casares was interested in the effects of sleep deprivation on psychosis.

Question

Hector Casares was interested in the effects of sleep deprivation on psychosis. He recruited a sample of 35-year-old adults with no personal or family history of psychotic events (e.g.. delusions, hallucinations, etc.). He then subjected his participants to 2 weeks of sleep deprivation and recorded the number of psychotic events that occurred for each participant during that time. His null hypothesis was Ho: Mpsychoticevents0 What statistical test could he use to test his hypothesis? a single-sample t test a random-sample t test o a related-samples t test e an independent-samples t test

Explanation / Answer

Solution : A single-sample t-test.

Since here we have only one random sample whose standard deviation is not known and we want to check if the average of the sample is equal to a particular number, an one-sample t-test is used in such case.

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