Question

Dr. Abba hypothesizes A cognitive psychologist hypothesizes that word chunking impacts language development. that taking a philosophy course will impact student life satisfaction. To test this hypothesis, he 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 be concluded with an α = 0.05?

start	end
82 75 82 81 91 81 87 76 81 82	91 84 86 93 90 88 87 79 88 87

a) What is the appropriate test statistic?
---Select---naz-testOne-Sample t-testIndependent-Samples t-testRelated-Samples t-test

b)
Condition 1:
---Select---semester endphilosophy coursethe semestersemester startlife satisfaction
Condition 2:
---Select---semester endphilosophy coursethe semestersemester startlife satisfaction

c) Obtain/compute the appropriate values 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 H0Fail 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---natrivial effectsmall effectmedium effectlarge effect
r² = ________; ---Select---natrivial effectsmall effectmedium effectlarge effect

f) Make an interpretation based on the results.

Student life satisfaction is significantly lower at the completion of the philosophy course.

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

Student life satisfaction is not significantly impacted by the philosophy course.

Answer 1