Is this statistically signifi
Pearson’s r
What was the
What is our risk?
Is this statistically significant?
Describe the strength and direction? What are the coefficients of determination and alienation (calculate them)?
r (12) = .899, p < .01
Chi-square Goodness of Fit test
How many conditions were there?
What is our risk?
Is this statistically significant?
χ2 (5) = 1.3, p > .05
Independent samples t-test
t (27) = 5.17, p < .05
What is my sample size?
Reject or accept the Null?
Go through the steps of hypothesis testing, report the statistic in proper format, make sure you indicate the critical value or the p value when appropriate, interpret when appropriate (that includes effect size calculations). All work must be in Excel. You are only allowed to use the Excel
1. Conduct a Chi-square Goodness of Fit Test
A bakeshop owner wants to know how to make his Baklava to the maximum appeal for his patrons (a sweet walnut and honey pastry). He thinks that the major factors that determine appeal are the amounts honey in the filling.
During an eight-week period he makes three batches of Baklava using a low, medium and high mount of honey. He then counts how many of each type he has sold: low (n=102), medium (n=108), and high (n=84).
2. Use an Independent Samples t-test.
A researcher wants to know if people are more willing to help friends than strangers. Willingness to help was measured on an 8pt scale.
|
HowLikelyFriend (0-8) |
HowLikelyStranger (0-8) |
|
8 |
5 |
|
6 |
3 |
|
4 |
2 |
|
8 |
6 |
|
8 |
3 |
|
7 |
6 |
|
8 |
6 |
|
8 |
6 |
|
7 |
3 |
|
3 |
2 |
|
8 |
2 |
|
6 |
3 |
|
7 |
2 |
|
8 |
5 |
|
6 |
2 |
|
5 |
2 |
|
8 |
4 |
|
8 |
6 |
|
4 |
8 |
|
8 |
6 |
|
6 |
8 |
|
7 |
4 |
|
7 |
5 |
|
5 |
5 |
|
8 |
8 |
|
8 |
8 |
|
8 |
3 |
|
7 |
5 |
|
6 |
3 |
|
7 |
0 |
3. Use a Pearson’s r
Researchers are interested in the relationship between how much an exhibit is liked and if viewers found the works meaningful; both of these variables were measured on an 8pt scale.
|
Exhibit Liked |
Meaningful |
|
8 |
8 |
|
7 |
7 |
|
6 |
5 |
|
8 |
8 |
|
5 |
2 |
|
6 |
7 |
|
5 |
5 |
|
4 |
3 |
|
5 |
6 |
|
6 |
3 |
|
4 |
5 |
|
8 |
7 |
|
7 |
6 |
|
6 |
5 |
|
5 |
4 |
|
3 |
3 |
|
4 |
5 |
|
6 |
7 |
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