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Exam One Review Quiz

Psy302 Quantitative Methods. Exam One Review Quiz. 1. The symbol µ represents:. a parameter the variance the sample mean the population standard deviation a statistic. The symbol µ represents:. a parameter the variance the sample mean the population standard deviation

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Exam One Review Quiz

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  1. Psy302 Quantitative Methods Exam One Review Quiz

  2. 1. The symbol µ represents: • a parameter • the variance • the sample mean • the population standard deviation • a statistic

  3. The symbol µ represents: • a parameter • the variance • the sample mean • the population standard deviation • a statistic

  4. 2. In order to calculate the variance you must first calculate the: • standard deviation • Z score • median • deviation score • square root

  5. In order to calculate the variance you must first calculate the: • standard deviation • Z score • median • deviation score • square root

  6. 3. Which of the following uses all the data? • median • Range • Variance • Mode • b & c

  7. Which of the following uses all the data? • median • Range • Variance • Mode • b & c

  8. 4. Lorenzo scored at the 10th percentile. What would be his Z score? • 1 • –1.2 • 2.3 • –2.2 • 10

  9. Lorenzo scored at the 10th percentile. What would be his Z score? • 1 • –1.2 • 2.3 • –2.2 • 10

  10. 5. What is Vikeisha’s individual deviation score? • -1 • 2 • 3 • 4 • 0

  11. What is Vikeisha’s individual deviation score? • -1 • 2 • 3 • 4 • 0

  12. 6. Use table A to find the value of Z with 25% of the observations falling below it? • -.675 • .2533 • –1.66 • . 9978 • -.2533

  13. Use table A to find the value of Z with 25% of the observations falling below it? • -.675 • .2533 • –1.66 • . 9978 • -.2533

  14. 7. Which of the following is a measure of variability? • Spread • Range • Mean • Correlation • skewness

  15. Which of the following is a measure of variability? • Spread • Range • Mean • Correlation • skewness

  16. 8. Cameron scored 85 on a test with a mean of 75 and a standard deviation of 5. Kristen scored 85 on a test with a mean of 75 and a standard deviation of 10. Assuming normal distributions, who is the better student? • Kristen • Cameron • both are the same • can't say from these data

  17. Cameron scored 85 on a test with a mean of 75 and a standard deviation of 5. Kristen scored 85 on a test with a mean of 75 and a standard deviation of 10. Assuming normal distributions, who is the better student? • Kristen • Cameron • both are the same • can't say from these data

  18. 9. Mary had a percentile score of 48. Kyle had a z score of zero. Assuming a normal distribution, who performed the best?to answer • Kyle • Mary • Need to know the standard deviation to answer • need to know the mean to answer • C & D

  19. 9. Mary had a percentile score of 48. Kyle had a z score of zero. Assuming a normal distribution, who performed the best?to answer • Kyle • Mary • Need to know the standard deviation to answer • need to know the mean to answer • C & D

  20. 10. What percent of scores lie below a z score of +1? • 84% • 16% • 68% • 50% • 95%

  21. 10. What percent of scores lie below a z score of +1? • 84% • 16% • 68% • 50% • 95%

  22. The End

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