Confidence Intervals Assessment Test

10 Questions | Total Attempts: 281

SettingsSettingsSettings
Please wait...
Confidence Intervals Assessment Test

Confidence intervals are used in statistics as a type of interval estimate that is computed from the observed data. Take this assessment test to evaluate your knowledge of confidence intervals.


Questions and Answers
  • 1. 
    Which is a type of estimate for population parameter?  
    • A. 

      Shore

    • B. 

      SuperĀ 

    • C. 

      Off estimate

    • D. 

      Point estimate

  • 2. 
    The null value of the confidence interval for the relative risk is...
    • A. 

      0

    • B. 

      1

    • C. 

      2

    • D. 

      15

  • 3. 
    Which is an example of dichotomous variable?
    • A. 

      Estimate

    • B. 

      Portion 

    • C. 

      Density

    • D. 

      Population proportion

  • 4. 
    A range of values that is likely to contain the value of an unknown population parameter is...
    • A. 

      Density

    • B. 

      LinearĀ 

    • C. 

      Discreet

    • D. 

      Confidence interval

  • 5. 
    Which is an important parameter in calculating confidence interval?
    • A. 

      Mean

    • B. 

      Ratio

    • C. 

      Time

    • D. 

      Level

  • 6. 
    What is the confidence interval for 99?
    • A. 

      1.01

    • B. 

      2.58

    • C. 

      3.89

    • D. 

      0.66

  • 7. 
    What is the z value for 99 confidence interval?
    • A. 

      3.33

    • B. 

      0.06

    • C. 

      2.58

    • D. 

      1.88

  • 8. 
    Wide confidence intervals mean that your sample size was too...
    • A. 

      Huge

    • B. 

      Small

    • C. 

      Big

    • D. 

      Wide

  • 9. 
    What is the critical value for 95 percent confidence interval?
    • A. 

      1

    • B. 

      0

    • C. 

      0.88

    • D. 

      1.96

  • 10. 
    A statistic expressing the amount of random sampling error in a survey's results is...
    • A. 

      Curve

    • B. 

      Line

    • C. 

      Margin of error

    • D. 

      Error of slope