In: Statistics and Probability
A study conducted at a large university was aimed at discovering
whether personality traits influence choice of college major. A
random sample of psychology and music majors were selected from the
university's corresponding college/school. Each student was given
the "need dependence" scale. The researchers hypothesize that
psychology majors have less need dependence than music majors. What
can be concluded with α = 0.10?
music | psychology |
14 8 10 12 3 10 12 10 9 8 |
14 11 12 15 9 13 15 13 12 11 |
a) What is the appropriate test statistic?
---Select One--- (na, z-test, One-Sample t-test,
Independent-Samples t-test, or Related-Samples t-test)
b)
Condition 1:
---Select One--- (college/school, psychology
major, personality traits, music major, or need dependence)
Condition 2:
---Select One--- (college/school, psychology
major, personality traits, music major, or need dependence)
c) Input the appropriate value(s) to make a
decision about H0.
(Hint: Make sure to write down the null and alternative hypotheses
to help solve the problem.)
p-value = _____ ;
Decision: ---Select One--- (Reject H0
or Fail reject H0)
d) Using the SPSS results,
compute the corresponding effect size(s) and indicate
magnitude(s).
If not appropriate, input and/or select "na" below.
d = _____ ;
Magnitude: ---Select One--- "na,
trivial effect, small effect, medium effect, or large effect"
r2 =_____ ;
Magnitude: ---Select One--- "na,
trivial effect, small effect, medium effect, or large effect"
e) Make an interpretation based on the results.
Which is correct?
a)The psychology majors have significantly less need dependence than music majors.
b)The music majors have significantly less need dependence than psychology majors.
c)There is no significant need dependence difference between psychology and music majors.