100
What is the chi-square formula?
(O-E)2/E
100
How do you find the degrees of freedom in a goodness of fit?
n-1
100
If r is .972 then r is...
Strong, positive, and linear
200
What is the null hypothesis of a goodness of fit?
population proportion=hypothesis proportion
200
What is your p-value if your chi-square equals 158.84?
Between .05 and .10
200
The correlation coefficient is affected when the two variables are interchangeable.
False
300
All expected counts at least one.
True
300
What is your degrees of freedom if you have 18 rows and 4 columns?
51
300
If the p-value>alpha then...
don't reject Ho, not statistically significant
400
How do you find the degrees of freedom for chi-square distribution?
(rows-1)(columns-1)
400
What is the sample method for a chi-square?
SRS
400
What are the conditions for Chi-Square?
1. All expected counts are at least 1.
2. No more than 20% of expected counts <5.
500
No more than 60 percent of expected counts are chi-square.
false
500
The correlation coefficient gives a measure of linear association of two variables.
True
500
If the p-value
reject Ho, statistically significant






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