Question

Dr. Hanh hypothesizes that her statistics course will have an impact on student life satisfaction. To test this hypothesis, she collects life satisfaction ratings for all students in the course at the start of the semester and again at the end of the semester. Below are the data. What can Dr. Hanh conclude with an an α of 0.05?

start	end
82 75 81 91 87 84	91 84 93 90 87 79

a) What is the appropriate test statistic?
---Select--- na z-test One-Sample t-test Independent-Samples t-test Related-Samples t-test

b)
Condition 1:
---Select--- life satisfaction the semester statistics course semester start semester end
Condition 2:
---Select--- life satisfaction the semester statistics course semester start semester end

c) Compute the appropriate test statistic(s) to make a decision about H₀.
(Hint: Make sure to write down the null and alternative hypotheses to help solve the problem.)
critical value =  ; test statistic =  
Decision:  ---Select--- Reject H0 Fail to reject H0

d) If appropriate, compute the CI. If not appropriate, input "na" for both spaces below.
[  ,  ]

e) Compute the corresponding effect size(s) and indicate magnitude(s).
If not appropriate, input and/or select "na" below.
d =  ;   ---Select--- na trivial effect small effect medium effect large effect
r² =  ;   ---Select--- na trivial effect small effect medium effect large effect

f) Make an interpretation based on the results.

Student life satisfaction is significantly lower at the completion of the statistics course

.Student life satisfaction is significantly higher at the completion of the statistics course.     

Student life satisfaction is not significantly higher at the completion of the statistics course.

Answer 1

We are allowed to do only 4 subparts of a question at a time.