Use the data provided in the table to test whether well-being changed significantly from immediately before to 3 months after the session. Set alpha at .05. a) Write a null and alternative hypothesis b) Determine the critical value and draw the comparison distribution with the rejection region(s) indicated c) Compute the relevant statistic d) Make a statistical decision (regarding the null hypothesis) e) Write a conclusion based on the specific research question

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Use the data provided in the table to test whether well-being changed significantly from immediately before to 3 months after the session. Set alpha at .05.

  1. a) Write a null and alternative hypothesis
  2. b) Determine the critical value and draw the comparison distribution with the rejection region(s) indicated
  3. c) Compute the relevant statistic
  4. d) Make a statistical decision (regarding the null hypothesis)
  5. e) Write a conclusion based on the specific research question
**Hypothesis Testing**

Harris (2020) tested levels of well-being in subjects with chronic anxiety undergoing brief therapy with mild psychedelics three months before and again three months after the administration of a single session of therapy. The well-being scores for the 16 subjects are listed in the “Before” and “After” columns in the table below:

| Subject | Before | After |
|---------|--------|-------|
| A       | 125    | 133   |
| B       | 96     | 126   |
| C       | 115    | 115   |
| D       | 108    | 119   |
| E       | 93     | 124   |
| F       | 98     | 109   |
| G       | 95     | 72    |
| H       | 120    | 104   |
| I       | 107    | 113   |
| J       | 126    | 118   |
| K       | 102    | 121   |
| L       | 116    | 115   |
| M       | 80     | 94    |
| N       | 105    | 87    |
| O       | 123    | 121   |
| P       | 110    | 118   |

This table presents data on well-being scores recorded for different subjects before and after undergoing therapy. Each subject has two corresponding scores, indicating their well-being at two different times. Observing the changes in scores can help deduce the impact of the therapeutic session on well-being.
Transcribed Image Text:**Hypothesis Testing** Harris (2020) tested levels of well-being in subjects with chronic anxiety undergoing brief therapy with mild psychedelics three months before and again three months after the administration of a single session of therapy. The well-being scores for the 16 subjects are listed in the “Before” and “After” columns in the table below: | Subject | Before | After | |---------|--------|-------| | A | 125 | 133 | | B | 96 | 126 | | C | 115 | 115 | | D | 108 | 119 | | E | 93 | 124 | | F | 98 | 109 | | G | 95 | 72 | | H | 120 | 104 | | I | 107 | 113 | | J | 126 | 118 | | K | 102 | 121 | | L | 116 | 115 | | M | 80 | 94 | | N | 105 | 87 | | O | 123 | 121 | | P | 110 | 118 | This table presents data on well-being scores recorded for different subjects before and after undergoing therapy. Each subject has two corresponding scores, indicating their well-being at two different times. Observing the changes in scores can help deduce the impact of the therapeutic session on well-being.
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