Renee is just starting graduate school in educational psychology. For her first project, she hypothesizes that listening to certain music (lo-fi hip-hop) increases attention during reading, allowing participants to read faster. To test her hypothesis, she designs a between-subjects experiment and randomly assigns 16 participants to read a collection of nonfiction essays under either a "no music" or a "lo-fi" condition. She then measures how many pages the subjects read in 20 minutes.

• What is Renee's Null hypothesis and (one-tailed) Alternative hypothesis?

Pages Read
No Music	Lo-Fi
23	28
21	24
28	26
31	38
18	21
20	23
32	31
35	41

• Calculate the test statistic (t) and critical value for this hypothesis test
• What decision should Renee make about her hypothesis test?