Question

You need to test the following hypothesis using which statistical test?

Girls who participate in an after-school character building program for 6 weeks have improved self-image (total self-image score 0 to 100) from the beginning of the program (time 1) to the end of the program (time 2).

Select one:

a. Paired-samples t-test

b. Chi-square

c. T-test

d. Correlation

Answer #1

(A)paired sample test

A paired t-test is used to compare two population means where
you have two samples in which observations in one sample can be
paired with observations in the other sample. Examples of where
this might occur are:

Before-and-after observations on the same subjects (e.g. students’
diagnostic test results before and after a particular module or
course).

A comparison of two different methods of measurement or two
different treatments where the measurements/treatments are applied
to the same subjects (e.g. blood pressure measurements using a
stethoscope and a dynamap).

For each hypothesis, the specific statistical test appropriate
for testing the hypothesis should be described and a brief
description of why the chosen test is most appropriate should be
included.
One Sample t-test, Two sample t-test, Two related
(correlated/paired/dependent)sample t-test, One Factor (one way)
analysis of variance (ANOVA), Factorial for two way/facot Analysis
of Variance (Anova), One Variable Chi-Square test, two variable chi
square test, correlation, or linear regression
Example:
1. People who work in a sedentary job are more...

For each statistical question, select the type of statistical
test (below) that would be appropriate to use. Tests may be used
once, more than once, or not at all.
1.) Do tenured faculty members produce more or fewer
publications per year than non-tenured faculty
members?
A.
chi-square
B.
independent samples t-test
C.
correlation/regression
D.
dependent samples t-test
E.
ANOVA
2.) Do married women spend more time doing housework
each week than their husbands do?
A.
chi-square
B.
independent samples t-test...

For each hypothesis, the specific statistical test appropriate
for testing the hypothesis should be described and a brief
description of why the chosen test is most appropriate should be
included.
One Sample t-test, Two sample t-test, Two related
(correlated/paired/dependent)sample t-test, One Factor (one way)
analysis of variance (ANOVA), Factorial for two way/facot Analysis
of Variance (Anova), One Variable Chi-Square test, two variable chi
square test, correlation, or linear regression
Example: 1. People who work in a sedentary job
are more...

What statistical test should be used for the following study? A
corporation psychologist believes that exercise affects self-image.
To investigate this possibility, 14 employees of the corporation
are randomly selected to participate in a jogging program. Before
beginning the program, they are given a questionnaire that measures
self-image. Then they begin the jogging program. The program
consists of jogging at a moderately taxing rate for 20 minutes a
day, 4 days a week. Each employee's self-image is measured again
after...

PAIRED SAMPLES T TEST A Corporation Psychologist believes that
exercise affects self-image. To investigate this probability, 14
employees of the corporation are randomly selected to participate
in a jogging program. Before beginning the program, they are given
a questionnaire that measures self-image. Then they begin the
jogging program. They jogged 4 days a week for 20 minutes. Each
employee’s self-image is measured again after two months on the
program. The results are as follows: the higher the score, the
higher...

Olympia's second hypothesis is: Athletes who
are fast runners [Run] are fast bikers [Bike]. What
inferential procedure should she run to test her
hypothesis?
Group of answer choices
Chi square test of Association
Dependent samples t-test
Independent samples t-test
Single sample t-test
Pearson correlation
Spearman correlation

For each hypothesis, the specific statistical test appropriate
for testing the hypothesis should be described and a brief
description of why the chosen test is most appropriate should be
included.
One Sample t-test, Two sample t-test, Two related
(correlated/paired/dependent)sample t-test, One Factor (one way)
analysis of variance (ANOVA), Factorial for two way/facot Analysis
of Variance (Anova), One Variable Chi-Square test, two variable chi
square test, correlation, or linear regression
Example:
1. People who work in a sedentary job are more...

Choosing a hypothesis test: For each of the following three
scenarios, state which hypothesis test you would use from among the
four introduced so far: the z test, the single-sample t test, the
paired sample t test, and the independent-samples t test. (Note: In
the actual of these tests, often because the actual experiment had
additional variables.) Explain your answer.
A study of 40 children who had survived a brain tumor revealed
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For the following experiment/question, pick the most appropriate
statistical test. You have the following statistical tests as
choices: some may be used more than once, others not at
all. Assume homogeneity of variance (where
applicable) and the validity of parametric tests (where
applicable), unless something is directly stated (e.g., “the data
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violation of an assumption. This means you must...

For the following experiment/question, pick the most appropriate
statistical test. You have the following statistical tests as
choices: some may be used more than once, others not at
all. Assume homogeneity of variance (where
applicable) and the validity of parametric tests (where
applicable), unless something is directly stated (e.g., “the data
are not at all normal”) or otherwise indicated (viz., by the
inspection of the data) which would indicate a strong and obvious
violation of an assumption. This means you must...

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