Question

a) Provide a real life example scenario for a paired-samples
*t*-test that includes sample data for N = 4 in each
condition. Do not only present the numbers; you need a reasonable
example of something that could be tested with a paired-samples
*t*-test.

b) Explain why your example is appropriate for a paired-samples
*t*-test.

c) Conduct the paired-samples *t*-test (two-tailed test
with an alpha of .05), showing your work for each step.

Answer #1

Provide an example of a paired sample t-test in pharmaceutical
research.

I want you to create your own example of a Related/Paired
Samples t-Test.
Include the following:
IV:
DV:
Null Hypothesis:
Alternative Hypothesis:

Scenario 3: t-test Analysis
Paired Samples
Statistics
Mean
N
Std. Deviation
Std. Error Mean
Pair 1
T1 Scale of student's mathematics
utility
-.0096
16021
.99040
.00782
T2 Scale of student's mathematics
utility
.0059
16021
1.00682
.00795
Paired Samples
Correlations
N
Correlation
Sig.
Pair 1
T1 Scale of student's mathematics
utility & T2 Scale of student's mathematics utility
16021
.285
.000
Paired Samples
Test
Paired Differences
t
df
Sig. (2-tailed)
Mean
Std. Deviation
Std. Error Mean
95% Confidence Interval of the...

For questions 1 through 3 state the proper t-test (one
sample, paired samples, independent samples) that should be used to
evaluate the research question: (*Just state the test)
1) A developmental psychologist wants to determine if
a recently created computer training program can increase the
working memory ability of high-school students. A sample of 40
students are given the reverse digit span test at the beginning of
the school year and then again after 4 weeks of training. Are there...

Question 10.25 pts
If you are using SPSS to conduct a two independent samples
t-test, examining the impact of your independent variable of
"smoking status" (smoker vs. non-smoker) on your dependent variable
of "number of cavities reported in a 3 year period", the variable
of "number of cavities reported in a 3 year
period" would be your identified "Grouping
Variable" in the Independent Samples T-Test pop up
box.
True
False
Flag this Question
Question 20.25 pts
If SPSS reports a...

One Sample t- test
SPSS Assignment %
For Questions 1 , includes all eight steps of Hypothesis
Testing
Assume that the mean number of violent acts in television shows
is 10.2 per episode ( this is a historical average and may be
treated as a population parameter). A random sample of shows from a
new network has the following number of acts of violence. The
question motivating this research is Does the number of acts of
violence from these new...

INDEPENDENT SAMPLES T-TESTS
A behavioral researcher wished to determine whether or not 10
milligrams of Valium would have an effect on the scores of human
subjects performing a task of psychomotor coordination. Thirty
students were selected from a subject pool and an equal number
assigned to Experimental (Valium) and Control conditions. All
subjects in the Experimental Group received Valium thirty minutes
prior to being tested. The subjects in the Control Condition
received a placebo (inert substance) at the same time....

Review the SPSS output
file that reports the results of the related samples
t-test to compare the number of U.S. states where each
brand was sold in 2008 with the number of U.S. states where those
same brands were sold in 2012. For each brand, there is one value
for the number of states in 2008 and another value for the number
of states in 2012, making this a repeated measure. Answer the
following questions based on your observations of...

For each of the following two-samples t-tests (problems
1-6): (a) Determine if a F test for the ratio of two variances is
appropriate to calculate for the context. If it is appropriate,
conduct the analysis and report the result. Include what
statistical conclusion you should draw from the analysis (i.e.,
whether you should conduct a pooled-variance t-test or an
unequal-variances t-test). (b) Identify the most appropriate t-test
to conduct for the situation/data given. Don’t forget to consider
if the context...

Consider the following example in which a paired comparison
hypothesis test was conducted to determine if the average daily
temperatures at the Montreal PET airport were more than 0.5 degrees
colder (at a 2% significance level) than the corresponding
temperatures at the Ottawa airport. The data set consisted of 12
pairs (TM - TO) with d = - 0.78 oC and sd = 1.03 oC. Where, TM:
Average daily temperature at the Montreal airport TO: Average daily
temperature at the...

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