Non-sample errors are reduced by:________________?

Related Mcqs:

1. Sampling errors are reduced by:___________________?

   A. Increasing the sample size
   B. Decreasing the sample size
   C. Increasing population s.d.
   D. None of these

2. A list of sample _________ is called sample space?

   A. Events
   B. Subset
   C. Piont
   D. Distinct

3. Sample variance S2 is unbiased estimator of population variance 26 because ________________?

   A. E(S2) = s2
   B. E(u) = X
   C. E(P) = P
   D. Ux = u

4. In statistics, a sample means__________?

   A. A portion of the sample
   B. A portion of the population
   C. All the items under investigation
   D. None of the above

5. Random samples of size 17 are from a population that has 200 elements, a mean of 36, and a standard deviation of 8. which of the following best describes the from of the sampling distribution of the sample mean for this situation ?

   A. Approximately normal because the sample size is small relative to the population size
   B. Approximately normal because of the central limit theorem
   C. Exactly
   D. None of these alternatives is correct

6. A sample of 24 observations is taken from a population that has 150 elements. The sampling distribution of is___________?

   A. Approximately normal because is always approximately normally distributed
   B. Approximately normal because the sample size is large in comparsion to the population size
   C. Approximately normal because of the central limit theorem
   D. Normal if the population is normally distributed

7. A sample estimate is used to describe a characteristic of a_____________?

   A. Sample
   B. Data
   C. Population
   D. None

8. The process of selecting sample from the population is called_________________?

   A. Sampling process
   B. Sampling unit
   C. Sampling
   D. Size

9. For a population with any distribution, the form of the sampling distribution of the sample mean is_____________?

   A. Sometimes normal for all sample sizes
   B. Sometimes normal for large sample sizes
   C. Always normal for all sample sizes
   D. Always normal for large sample sizes

10. Determining sample size for stratum is problem of___________?

    A. Sampling
    B. Allocation
    C. Estimate
    D. Population

    Submitted by: Nimra Shaheen