A previous exercise (1.2.16) introduced you to a study of 40 heterosexual couples. In 28 of the 40 couples the male said “I love you” first. Th e researchers were interested in learning whether these data provided evidence that in significantly more than 50% of couples the male says “I love you” fi rst.
a. State the null hypothesis and the alternative hypothesis in the context of the study.
b. Determine the standardized statistic from the data. (Hint: You will need to get the standard deviation of the simulated statistics from the null distribution.)
c. Interpret the standardized statistic in the context of the study. (Hint: You need to talk about the value of your observed statistic in terms of standard deviations assuming ______ is true.)
d. Based on the standardized statistic, state the conclusion that you would draw about the research question of whether males are more likely to say “I love you” first.