Post on 07-Feb-2016
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Exam One Review Quiz
Psy302 Quantitative Methods
1. The symbol µ represents:
A. a parameterB. the varianceC. the sample meanD. the population
standard deviationE. a statistic
The symbol µ represents:
A. a parameterB. the varianceC. the sample meanD. the population
standard deviationE. a statistic
2. In order to calculate the variance you must first calculate the:
A. standard deviation
B. Z scoreC. medianD. deviation scoreE. square root
In order to calculate the variance you must first calculate the:
A. standard deviation
B. Z scoreC. medianD. deviation scoreE. square root
3. Which of the following uses all the data?
A. medianB. RangeC. VarianceD. ModeE. b & c
Which of the following uses all the data?
A. medianB. RangeC. VarianceD. ModeE. b & c
4. Lorenzo scored at the 10th percentile. What would be his Z score?
A. 1B. –1.2C. 2.3D. –2.2E. 10
Lorenzo scored at the 10th percentile. What would be his Z score?
A. 1B. –1.2C. 2.3D. –2.2E. 10
5. What is Vikeisha’s individual deviation score?
A. -1B. 2C. 3D. 4E. 0
What is Vikeisha’s individual deviation score?
A. -1B. 2C. 3D. 4E. 0
6. Use table A to find the value of Z with 25% of the observations falling below it?
A. -.675B. .2533C. –1.66D. . 9978E. -.2533
Use table A to find the value of Z with 25% of the observations falling below it?
A. -.675B. .2533C. –1.66D. . 9978E. -.2533
7. Which of the following is a measure of variability?
A. SpreadB. RangeC. MeanD. CorrelationE. skewness
Which of the following is a measure of variability?
A. SpreadB. RangeC. MeanD. CorrelationE. skewness
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?A. KristenB. CameronC. both are the sameD. can't say from
these data
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?A. KristenB. CameronC. both are the sameD. can't say from
these data
9. Mary had a percentile score of 48. Kyle had a z score of zero. Assuming a normal distribution, who performed the best?to answerA. KyleB. MaryC. Need to know the standard deviation to
answerD. need to know the mean to answerE. C & D
9. Mary had a percentile score of 48. Kyle had a z score of zero. Assuming a normal distribution, who performed the best?to answerA. KyleB. MaryC. Need to know the standard deviation to
answerD. need to know the mean to answerE. C & D
10. What percent of scores lie below a z score of +1?
A. 84%B. 16%C. 68%D. 50%E. 95%
10. What percent of scores lie below a z score of +1?
A. 84%B. 16%C. 68%D. 50%E. 95%
The End