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...
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