# Anova z test for the population mean two sample t

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ANOVAz-test for the population meantwo-sample t-testpaired t-testCorrect! Since the study uses the same participants for both a pretest measure (before the GRE prep course) and a posttest (after the prep course) measure, the appropriate statistical technique would be the paired t-test.
Question 8 of 9In a hypothetical study, a pharmaceutical company is interested in finding the dosage of a new medication that best treats panic attacks. Ninety people, whoare diagnosed with panic attacks, were randomly assigned to three groups: (1) 20 milligrams of the new drug, (2) 30 milligrams of the new drug, and (3) 40 milligrams of the new drug.After 30 days on the medication, each participant records the number of panicattacks they have experienced in the previous seven days.What hypothesis testing technique should the researcher use to analyze the data?
Question 9 of 9Do men and women differ, on average, in terms of the amount of television that they watch each day? A researcher conducted a hypothetical study,
where he randomly selected 50 men and 50 women and recorded the numberof minutes of television watched during the previous day.Which of the following should the researcher use to determine whether there is a difference in mean number of minutes of television viewing between men and women?