Question
In: Statistics and Probability
Can you give me each step of this problem? A researcher would like to evaluate the...
Can you give me each step of this problem?
A researcher would like to evaluate the effectiveness of a pain-relief patch designed for lower back pain. Prior to testing the patch, each of n = 8 patients rates the current level of back pain on a scale from 1 to 10. After wearing the patch for 90 minutes, a second pain rating is recorded. The data are as follows:
Before After
6 2
8 3
9 4
8 1
10 2
5 3
9 8
7 7
- Compute the mean and variance for the sample of difference scores.
- Do the results indicate a significant difference?
- Use a two-tailed test with α = .05
- Compute Cohen’s d to measure the size of the effect.
Solutions
orchestra answered 1 year agoRelated Solutions
who can give me the example like this:(also give me the answer,Tell me what formula should...
who can give me the example like this:(also give me the
answer,Tell me what formula should use to calculate and
how to use those formulas.)thank you
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A researcher would like to evaluate the effectiveness of a pain-relief patch designed for lower back...
A researcher would like to evaluate the effectiveness of a
pain-relief patch designed for lower back pain. Prior to testing
the patch, each of n = 8 patients rates the current level
of back pain on a scale from 1 to 10. After wearing the patch for
90 minutes, a second pain rating is recorded. The data are as
follows:
Before After
6
2
8
3
9
4
8
1
10
2
5 ...
A researcher would like to evaluate the effectiveness of a pain-relief patch designed for lower back...
A researcher would like to evaluate the effectiveness of a
pain-relief patch designed for lower back pain. Prior to testing
the patch, each of n = 4 patients rates the current level
of back pain on a scale from 1 to 8. After wearing the patch for 90
minutes, a second pain rating is recorded. The data are as
follows.
Before
After
__________________
G =
36
6 2
G2 =
784 ...
A researcher would like to evaluate the effectiveness of a pain-relief patch designed for lower back...
A researcher would like to evaluate the effectiveness of a
pain-relief patch designed for lower back pain. Prior to testing
the patch, each of n = 8 patients rates the current level
of back pain on a scale from 1 to 10. After wearing the patch for
90 minutes, a second pain rating is recorded. The data are as
follows:
Before
After
6
2
8
3
9
4
8
1
10
2
5 ...
A researcher would like to evaluate the effectiveness of a pain-relief patch designed for lower back...
A researcher would like to evaluate the effectiveness of a
pain-relief patch designed for lower back pain. Prior to testing
the patch, each of n = 4 patients rates the current level
of back pain on a scale from 1 to 8. After wearing the patch for 90
minutes, a second pain rating is recorded. The data are as
follows.
Before
After
__________________
G =
36
6 2
G2...
If anyone can give a detailed, step by step analysis of the following problem I need...
If anyone can give a detailed, step by step analysis of the
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