Transcribed Text
Task 1 for the 2
test
A researcher is investigating whether there are gender differences in students’ choice of
writing instruments (i.e., use of pencils vs. pens). The researcher observes a sample of
high school students and notes both the student gender and the instrument used for
writing. These are the data:
Gender Instrument Gender Instrument
F PENCIL M PENCIL
F PENCIL M PENCIL
M PEN M PENCIL
F PENCIL M PEN
F PEN F PENCIL
F PEN M PEN
M PEN M PENCIL
F PENCIL M PEN
F PENCIL M PEN
M PEN M PENCIL
M PEN M PEN
F PENCIL F PENCIL
F PEN F PENCIL
F PENCIL
Your assignment: (5 points each question)
1. State the null hypothesis of interest in this study (symbol representation and
statements).
2. What type of 2 do you use? Why?
3. Compute 2
, evaluate statistical significance using an alpha level of .05, estimate
the effect size (w), and a measure of association (Cramer’s V).
4. Write a one-paragraph interpretation of the results of this study (including all the
numbers of 2
, the critical 2
,an alpha level, w, and Cramer’s V)
5. Using SAS to conduct analyses for this study. Attach your syntax and outputs (
Highlight your crucial results in your outputs)
Task 2 for one-way ANOVA
A researcher was studying teachers’ uses of technology in instruction. She drew four
samples of high school teachers, one each from teachers of mathematics, English,
science and history. She made certain that all teacher participants in the study were
teaching in their field of certification and that all had between five and ten years of
experience in that subject area. Each teacher completed the Teach with Tech scale (Nerdy &
Frump, 1998) a self-report instrument that measures the use of technology in
classroom instruction. The scale provides scores ranging from 10 to 30, with higher
scores representing a greater use of technology. These are the resulting data:
Subject Area
Math English Science History
24 19 16 15
19 13 18 12
29 15 15 14
28 15 16 11
28 12 17 12
26 14 17 13
Your assignment: (5 points each question)
6. State the null hypothesis of interest in this study (symbol representation and
statements).
7. Conduct an appropriate test of this null hypothesis using an alpha level of .05
and interpret the results of this test.
8. Construct an ANOVA summary table that could be used to communicate the
results of this test.
9. Conduct the appropriate multiple comparison tests to identify statistically
significant pairwise differences between subject area mean scores.
10. Write a one-paragraph interpretation of the results.
11. Construct a summary table of the linear model for this researcher’ data and
indicate the following elements:
41 4321 6334532112 YY 64 ,,,,,,,,,,,
12. Using SAS to conduct analyses for this study. Submit your syntax and outputs
(Highlight your crucial results in your outputs)
These solutions may offer step-by-step problem-solving explanations or good writing examples that include modern styles of formatting and construction
of bibliographies out of text citations and references. Students may use these solutions for personal skill-building and practice.
Unethical use is strictly forbidden.