| 1 |
|
- A. biased
- B. unbiased
- C. positively biased
- D. none of these
|
| 2 |
The standard error of the estimate increased by decreasing |
- A. population
- B. sample size
- C. errors
- D. precision
|
| 3 |
(1-α) is called: |
- A. Critical value
- B. Level of significance
- C. Level of confidence
- D. Interval estimate
|
| 4 |
If mean of the sampling distribution is equal to the parameter then the estimator will be |
- A. biased
- B. consistent
- C. sufficient
- D. unbiased
|
| 5 |
Small sample has less than |
- A. 50 values
- B. 45 values
- C. 30 values
- D. 35 values
|
| 6 |
Statistic is an estimator and its calculated value is called: |
- A. Biased estimate
- B. Estimation
- C. Interval estimate
- D. Estimate
|
| 7 |
The precision can be increased by ---------------- the sample size |
- A. increasing
- B. decreasing
- C. changing
- D. ignoring
|
| 8 |
The endpoints of a confidence interval are called: |
- A. confidence coefficient
- B. Confidence limits
- C. Error of estimation
- D. Parameters
|
| 9 |
If 1-α = 0.90, the value of Z<sub>a/2</sub> is: |
- A. 1.645
- B. 1.96
- C. 2.326
- D. 2.575
|
| 10 |
The process of making estimates about the population parameter from a sample is called: |
- A. Statistical independence
- B. Statistical inference
- C. Statistical hypothesis
- D. Statistical decision
|
