Mean (6 Questions) (most affected by) - Answer-Most affected by outliers
Mean (needs at least) - Answer-Needs at least interval
Median (least affected by) - Answer-Least affected by outliers
Median (needs at least) - Answer-Needs at least ordinal
Mode (Needs at least) - Answer-Needs at ...
BESC 3010 FINAL EXAM QUESTIONS
AND ANSWERS
Mean (6 Questions) (most affected by) - Answer-Most affected by outliers
Mean (needs at least) - Answer-Needs at least interval
Median (least affected by) - Answer-Least affected by outliers
Median (needs at least) - Answer-Needs at least ordinal
Mode (Needs at least) - Answer-Needs at least nominal
Variance (5 Questions) (If low, then) - Answer-If low, then individuals in data set are
very similar
Range - Answer-Most sensitive to extreme scores
Standard Deviation (Sample vs. Population) - Answer-Sample SD underestimates
Population SD
Standard Deviation (If use the wrong formula) - Answer-Will be too small if the using the
wrong formula
Standard Deviation (If numbers are very different, then) - Answer-If numbers are very
different, then SD will be high
Z Scores (7 Questions) (Range) - Answer--3 to 3
Z scores (Closest to the mean=) - Answer-Closest to mean=0
Z scores (NEW MEAN) - Answer-If data set is converted to z score, the new mean=0
Z score (NEW SD) - Answer-If data set is converted to z score, the new SD=1
Independent Variable (3 questions) - Answer-Is the manipulation
Dependent Variable - Answer-Is the outcome
Sampling Distributions - Answer-Can be calculated for any statistic
Central Limit Theorem - Answer-The sampling distribution of the mean will approach the
normal distribution as n increases (n>30).
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