Suppose 36 participants complete an experiment where ads are presented subliminally during a task (e.g., Coke ads are flashed at very fast rates during movie ads). Participants are then given a...

Suppose 36 participants complete an experiment where ads are presented subliminally during a task (e.g., Coke ads are flashed at very fast rates during movie ads). Participants are then given a recognition test for images of the ads, where two images are presented and participants must choose which one of the two was presented earlier. Both men and women (18 of each gender) participate in the study and the researcher predicts that the recognition accuracy will differ across gender.

a. State the alternative and null hypotheses for this study.

b. The difference between the sample means in this study was 6%. The SS for the men was 250 and the SS for the women was 150. Calculate the sample t score for this study (remember to start with the pooled variance before you calculate the estimated standard error).

c. What decision should the researcher make about the null hypothesis in this study? What can the researcher conclude about their prediction from this decision?