P09_54.xlsx contains the number of words that they could read before and after the course. Test the alterna- tive hypothesis at the 5% significance level that reading speeds have increased, on average, as a result of the course. Explain your answer in terms of the p-value. Do you need to assume that reading speeds (before and after) are nomally distributed? Why or why not?

P09_54.xlsx contains the number of words that they could read before and after the course. Test the alterna- tive hypothesis at the 5% significance level that reading speeds have increased, on average, as a result of the course. Explain your answer in terms of the p-value. Do you need to assume that reading speeds (before and after) are nomally distributed? Why or why not?

Name: 54. Eighteen readers took a speed-reading course. The fileP09_54.xlsx
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Description: 54. Eighteen readers took a speed-reading course. The fileP09_54.xlsx contains the number of words that theycould read before and after the course. Test the alterna-tive hypothesis at the 5% significance level that readingspeeds have increased, on a

MATLAB: An Introduction with Applications

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ISBN:9781119256830

Author:Amos Gilat

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Question

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54. Eighteen readers took a speed-reading course. The file
P09_54.xlsx contains the number of words that they
could read before and after the course. Test the alterna-
tive hypothesis at the 5% significance level that reading
speeds have increased, on average, as a result of the
course. Explain your answer in terms of the p-value.
Do you need to assume that reading speeds (before and
after) are normally distributed? Why or why not?

Reader
Before
After
1
250
260
2
300
310
3
320
330
4
340
350
380
390
400
410
7
310
320
8
420
430
360
370
10
390
400
11
321
331
12
213
223
13
263
273
14
450
460
15
430
440
16
420
422
17
150
152
18
190
192

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