Ed 602 Quiz 10

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  1. is the formula for
    1. the z-score test.
    2. the z-test.
    3. the one-sample t-test.
    4. the correlation coefficient.

  2. is the formula for
    1. the z-score test.
    2. the z-test.
    3. the one-sample t-test.
    4. the correlation coefficient.

  3. is the formula for
    1. the z-score test.
    2. the z-test.
    3. the one-sample t-test.
    4. the correlation coefficient.

  4. For the following research problem - The number of days absent per semester for the population of education students is normally distributed and known to have a mean of 2.73 and a standard deviation of .66. Joe is absent four times during the fall semester. Did Joe exhibit significantly more absences than the population?

    What is the proper statistical test to use with this research problem?

    1. the z-score test
    2. the z-test
    3. the one-sample t-test
    4. the correlation coefficient

  5. For the following research problem - Based upon previous experience, a clinical psychologist knows that it requires an average of 12.6 sessions, with a standard deviation of 2.75 sessions, for clients with a particular phobia to show substantial improvement. The psychologist finds that the average number of sessions needed for this sample to show improvement is 11.9. Is there a significant difference?

    What is the proper statistical test to use with this research problem?

    1. the z-score test
    2. the z-test
    3. the one-sample t-test
    4. the correlation coefficient

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