Question

In: Statistics and Probability

To study the effectiveness of a speed-reading course, eighteen people participated in a study. Prior to...

To study the effectiveness of a speed-reading course, eighteen people participated in a study. Prior to taking the course, the reading speed (in words per minute) was recorded for each participant. The eighteen participants then took the speed-reading course and their reading speed was again measured after the course. The data appear in the Reading worksheet of the Two Population Hypothesis Tests HW data workbook on Moodle.

a) What are the null and alternative hypotheses to test if reading speed increases, on the average, as a result of the course?

b) Use JMP to perform the hypothesis test of part a). Using  = 0.05, draw a conclusion for the hypothesis test. Make sure you state your conclusion in the context of the problem.

Reader Before After

1 250 255

2 300 308

3 320 315

4 340 347

5 380 392

6 400 422

7 310 305

8 420 427

9 360 368

10 390 396

11 321 336

12 213 204

13 263 273

14 450 455

15 430 444

16 420 422

17 150 140

18 190 192

Expert Solution

orchestra answered 2 years ago

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