A project based on touch therapy is presented at a science fairby a local high school student. In the study, practitioners oftouch therapy are blindfolded to see if they can detect a \"humanenergy field (HEF)\" without touching patients. The student believesthat a practitioner with less years of experience predicts morecorrect choices to detect HEF. What can be concluded with α =0.01?
| experience | HEF |
|---|
22
21
12
15
9
28
7
15
13
9 | 2
4
5
5
3
1
7
3
4
4 |
a) What is the appropriate statistic?
---Select--- na Correlation Slope Chi-Square
Compute the statistic selected above:Â Â
b) Compute the appropriate test statistic(s) tomake a decision about H0.
(Hint: Make sure to write down the null and alternative hypothesesto help solve the problem.)
Critical value =Â Â ; Test statistic =Â Â
Decision:Â Â ---Select--- Reject H0 Fail to reject H0
c) Compute the corresponding effect size(s) andindicate magnitude(s).
If not appropriate, input and/or select \"na\" below.
Effect size =Â Â ; Â Â ---Select--- na trivialeffect small effect medium effect large effect
d) Make an interpretation based on theresults.
Practitioners with more years of experience predict more HEFcorrectly.Practitioners with less years of experience predict moreHEF correctly.    Practitioners' years ofexperience does not predict detecting HEF.
