Soc 424 - Statistical Techn » Fall 2021 » Quiz 4

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Question #1
Which do you NOT need to do?
A.   Declare invalid values as Missing values in Variable View.
B.   Check for invalid values under the “Valid” heading in freq tables
C.   Pay attention to lectures
D.   Be aware of the number of missing cases in frequency tables
E.   Worry about, think about, or say anything about missing variables
Question #2
What lies at the 50th percentile?
A.   Mean
B.   Median
C.   Range
D.   Mode
E.   Standard Deviation
Question #3
Which is false?
A.   50% are on each side of the median
B.   68% are on each side of the mean
C.   For any range, we can estimate p
D.   95% of cases fall within *about* 2 standard deviations
E.   100% of valid cases are “under the curve”
Question #4
A z-score is…
A.   An estimate of the size of the ordinal variance
B.   The mean of the variance deviance
C.   A # of standard deviations away from the mean
D.   A variation ratio of the median to the range
E.   A proportion of variance away from the mean
Question #5
Standardized scores…
A.   Are calculated using z scores, translate an entire dataset to z scores, one by one, form a normal distribution, and are normalized scores
B.   Translate an entire dataset to z scores, one by one
C.   Are calculated using z scores
D.   Form a normal distribution
E.   Are normalized scores

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