BESC 3010 FINAL EXAM Questions and Correct Answers

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BESC 3010 FINAL EXAM Questions and
Correct Answers

Question: Mean (6 Questions) (most affected by)
Answer: Most affected by outliers


Question: Mean (needs at least)
Answer: Needs at least interval


Question: Median (least affected by)
Answer: Least affected by outliers


Question: Median (needs at least)
Answer: Needs at least ordinal


Question: Mode (Needs at least)
Answer: Needs at least nominal


Question: Variance (5 Questions) (If low, then)
Answer: If low, then individuals in data set are very similar


Question: Range
Answer: Most sensitive to extreme scores


Question: Standard Deviation (Sample vs. Population)
Answer: Sample SD underestimates Population SD


Question: Standard Deviation (If use the wrong formula)
Answer: Will be too small if the using the wrong formula


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Question: Standard Deviation (If numbers are very different, then)
Answer: If numbers are very different, then SD will be high


Question: Z Scores (7 Questions) (Range)
Answer: -3 to 3


Question: Z scores (Closest to the mean=)
Answer: Closest to mean=0


Question: Z scores (NEW MEAN)
Answer: If data set is converted to z score, the new mean=0


Question: Z score (NEW SD)
Answer: If data set is converted to z score, the new SD=1


Question: Independent Variable (3 questions)
Answer: Is the manipulation


Question: Dependent Variable
Answer: Is the outcome


Question: Sampling Distributions
Answer: Can be calculated for any statistic


Question: Central Limit Theorem
Answer: The sampling distribution of the mean will approach the normal
distribution as n increases (n>30).


Question: Z Test (Use when you know what)
Answer: Use when you know population mean & variance



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