Five persons, who were suffering from depression, attended 10 one-hour counseing sessions. The following table gives the depression scores (on a scale of 1 to 10) of these five persons before and after attending the counseling sessions. Note that a higher score means that a person has a worse case of depression. Before After 7.5 4.3 6.4 5.1 8.6 6.2 9.1 6.9 7.8 7.2 Average=7.880 Average=5.940 Variance= 1.222 | Variance=1.043 Can you conclude with The significance level is 5% that the counseling sessions does reduce the depression level? Hint: D = X1 –- X2; ob = o before + o after -2 * 0.613 * Obefore * Cafter

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Five persons, who were suffering from depression, attended 10 one-hour
counseing sessions. The following table gives the depression scores (on a scale of 1 to 10) of
these five persons before and after attending the counseling sessions. Note that a higher score
means that a person has a worse case of depression.
Before
After
7.5
4.3
6.4
5.1
8.6
6.2
9.1
6.9
7.8
7.2
Average= 7.880
Average=5.940
Variance= 1.222 | Variance=1.043
Can you conclude with The significance level is 5% that the counseling sessions
does reduce the depression level?
Hint: D %3D X1 —— X2; ор
O before + o after –2 * 0.613 * O before * Cafter
Transcribed Image Text:Five persons, who were suffering from depression, attended 10 one-hour counseing sessions. The following table gives the depression scores (on a scale of 1 to 10) of these five persons before and after attending the counseling sessions. Note that a higher score means that a person has a worse case of depression. Before After 7.5 4.3 6.4 5.1 8.6 6.2 9.1 6.9 7.8 7.2 Average= 7.880 Average=5.940 Variance= 1.222 | Variance=1.043 Can you conclude with The significance level is 5% that the counseling sessions does reduce the depression level? Hint: D %3D X1 —— X2; ор O before + o after –2 * 0.613 * O before * Cafter
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