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Chi-Squared
Chi-Squared
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Questions
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Answers
1
The hypotheses for Chi-Squared tests are best stated by...
Very loud words
Hand gestures
Complete sentences
Mathematical equations
2
Which of the following is NOT a necessary condition for inference with Chi-Squared?
Random Selection
Less than 10%
Expected Counts greater than 5
Unimodal and Symmetric sample data
3
What does the term "ANOVA" stand for?
A Neverending Occurance of Violin Acts
ANalyzing Overactive VAlets
ANalysis Of VAriance
Always Nag Over Violet Apes
4
Which of the following will NOT be on the final exam?
Two-sample t-test
One proportion z-test
ANOVA
Chi-Squared Test for Independence
5
The probability that a sample statistics could happen simply by random happenstance is called
The variance
The alpha level
The confidence level
The P-Value
6
What was the context of the presentation on Two-Sample Paired t-test?
M&M's
Mr. T's gold chains
Taking Naps helps productivity
Domino's vs. Papa John's
7
X
2
= 10.134 with 5 degrees of freedom at an alpha level of 0.05 would...
Accept the H0
Fail to Reject the H0
Can't tell
Reject the H0
8
Based on the following computer output, what would you conclude?
Cannot Tell
Reject the H0
Fail to Reject H0
9
In a paired t-test, the parameter of interest is...
The difference of population means
The mean of the population differences
The population mean
The difference of population proportions
10
The degrees of freedom for a two-sample independent groups t-test is ...
Use technology!
(r-1)(c-1)
n-2
n-1
11
Which of the following is NOT a valid "test statistic"?
X2
t
z
d
12
Which of the following is NOT a type of Chi-Squared test?
Homogeneity
Independence
Goodness of Fit
Random Selection
13
A Chi-Squared GOF test is used to...
Used for proportions of several categories on one variable
Uses a Chi-Squared Probability Distribution
Compare differences in expected and observed counts
All of the above
14
Which of the following must be true for t = 1.860 with 8 degrees of freedom?
Reject the H0
It comes from a paired t-test
Sample size is 9
none of these
15
In a scatterplot with a line of regression, the value of r is....
The correspondance
The coruscant
The coronation
The correlation
