HW 6: z-test, t-test for independent samples, t-test for related
samples, 1-way ANOVA
Researchers wanted to...
HW 6: z-test, t-test for independent samples, t-test for related
samples, 1-way ANOVA
Researchers wanted to explore different treatment methods to
effect memory skills in high school freshmen. Subjects were given a
memory test (under multiple conditions) these were the results:
Group 1
10, 8, 9, 11,
8, 9, 7, 6,
9, 8
Group 2
12, 10,
11, 9, 13, 8, 9, 12, 11, 11
Group 3
10, 9, 10, 9, 11,
8, 7, 9, 10, 11...
discuss the differences between a one-sample z-test, one-sample
t-test, the independent samples t-test and the dependent...
discuss the differences between a one-sample z-test, one-sample
t-test, the independent samples t-test and the dependent samples
t-test. Specifically, under what circumstances would you conduct
each test and what type of information comes from a known/defined
population versus your sample data?
What is the appropriate test (e.g., Independent Samples T Test,
Paired Samples T-Test, ANOVA, Correlation) and...
What is the appropriate test (e.g., Independent Samples T Test,
Paired Samples T-Test, ANOVA, Correlation) and why (e.g., what type
of variables are you analyzing)?
What is the effect of living arrangements on the overall
satisfaction at University.
Identify the appropriate statistical test for each research
description:
Single-sample z-test
Single-samplet-test
Independent samples t-test
Related...
Identify the appropriate statistical test for each research
description:
Single-sample z-test
Single-samplet-test
Independent samples t-test
Related samples t-test (repeated measures or matched
samples)
Correlation
A researcher would like to determine whether an over-the-counter
cold medication has an effect on mental alertness. A sample of n =
16 participants is obtained, and each person is given a standard
dose of the medication one hour before being tested in a driving
simulation task. For the general population, scores on the
simulation task...
State whether each of the following related samples
t-tests is significant for a two-tailed test at...
State whether each of the following related samples
t-tests is significant for a two-tailed test at a 0.05
level of significance.
(a)
t(30) = 3.330
Yes, the test is significant.
No, the test is not
significant.
(b)
t(15) = 2.541
Yes, the test is significant.
No, the test is not
significant.
(c)
t(14) = 2.032
Yes, the test is significant.
No, the test is not
significant.
(d)
t(60) = 1.951
Yes, the test is significant.
No, the test is not...