STAT 200 Statistical Analysis of Experimental Data and Variance Comparisons in Behavioral Studies
Statistical analysis of experimental data and variance comparisons.
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STAT 200 Statistical Analysis of Experimental Data and Variance
Comparisons in Behavioral Studies
stat 200 solution
1. If an experiment is conducted with 5 conditions and 6 subjects in each condition, what
are dfn and dfe?
2. Participants threw darts at a target. In one condition, they used their preferred hand; in
the other condition, they used their other hand. All subjects performed in both conditions
(the order of conditions was counterbalanced). Their scores are shown below.
Preferred Non Preferred
12 7
7 9
11 8
13 10
10 9
a. Which kind of t-test should be used?
b. Calculate the two-tailed t and p values using this t test.
c. Calculate the one-tailed t and p values using this t test.
3. Is the variance for the amount of money, in dollars, that shoppers spend on
Saturdays at the mall the same as the variance for the amount of money that
shoppers spend on Sundays at the mall? Suppose that the Table shows the results
of a study.
Saturday Sunday Saturday Sunday
75 44 62 137
18 58 0 82
150 61 124 39
Comparisons in Behavioral Studies
stat 200 solution
1. If an experiment is conducted with 5 conditions and 6 subjects in each condition, what
are dfn and dfe?
2. Participants threw darts at a target. In one condition, they used their preferred hand; in
the other condition, they used their other hand. All subjects performed in both conditions
(the order of conditions was counterbalanced). Their scores are shown below.
Preferred Non Preferred
12 7
7 9
11 8
13 10
10 9
a. Which kind of t-test should be used?
b. Calculate the two-tailed t and p values using this t test.
c. Calculate the one-tailed t and p values using this t test.
3. Is the variance for the amount of money, in dollars, that shoppers spend on
Saturdays at the mall the same as the variance for the amount of money that
shoppers spend on Sundays at the mall? Suppose that the Table shows the results
of a study.
Saturday Sunday Saturday Sunday
75 44 62 137
18 58 0 82
150 61 124 39
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Document Details
University
University of Maryland
Subject
Statistics