Explore BrainMass
Share

Explore BrainMass

    Statistics Quiz - 10 Multiple Choice Questions

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    1. A sample of n = 7 scores has a mean of M = 5. After one new score is added to the sample the new mean is calculated to be M = 6. The new score was X = 13. (Points: 1)
    True
    False

    2. What is the mean for the following sample of scores?
    Scores: 1, 2, 5, 4 (Points: 1)
    12
    6
    4
    3

    3. A population has a mean of m = 4 and SX=48. How many scores are in this population? (Points: 1)
    192
    48
    12
    cannot be determined from the information given

    4. For a perfectly symmetrical distribution with a median of 30, what is the value of the mean? (Points: 1)
    30
    greater than 30
    less than 30
    cannot be determined from the information given

    5. For a positively skewed distribution with m = 30, what is the most likely location for the median? (Points: 1)
    equal to 30
    greater than 30
    less than 30
    cannot be determined from the information given

    6. A deviation score with a high numerical value (either positive or negative) indicates a score that is relatively close to the mean. (Points: 1)
    True
    False

    7. The sum of the squared deviation scores is SS = 60 for a population of N = 5 scores. What is the variance for this population? (Points: 1)
    60/5 = 12
    60/4 = 15
    5(60) = 300
    4(60) = 240

    8. Which of the following samples would have the largest value for sample variance? (Points: 1)
    1, 3, 5
    11, 13, 15
    51, 53, 55
    All the samples would have exactly the same variance.

    9. For the following sample of n = 8 scores, what is the value of the range?
    Sample: 2, 3, 4, 4, 5, 7, 8, 10 (Points: 1)
    2 points
    4 points
    8 points
    9 points

    10. What is the value of SS for the following set of scores?
    Scores: 5, 6, 1. (Points: 1)
    144
    62
    14
    None of the other choices is correct.

    © BrainMass Inc. brainmass.com October 10, 2019, 1:12 am ad1c9bdddf
    https://brainmass.com/statistics/central-tendency/statistics-quiz-10-multiple-choice-questions-325468

    Solution Summary

    This solution is comprised of detailed step-by-step calculations and answers of the given problems related to Statistics and provides students with a clear perspective of the underlying concepts.

    $2.19