Questions and answers for exam Preparation

MCQs

Total Questions : 53 | Page 5 of 6 pages

Question 41. The listing of elements in the population with the identifiable number is classified as

regularity experimental frame
indirect experiment frame
direct experimental frame
frame for experiment

Discuss Question

Answer: Option D. -> frame for experiment
Answer: (d).frame for experiment

Question 42. If the standard deviation of the population is known then the μ must be equal to

absolute value of estimator
error free mean
expected value of mean
inferential value of mean

Discuss Question

Answer: Option C. -> expected value of mean
Answer: (c).expected value of mean

Question 43. In statistical analysis, the sample size is considered large if

n > or = 30
n < or = 30
n > or = 50
n < or = 50

Discuss Question

Answer: Option A. -> n > or = 30
Answer: (a).n > or = 30

Question 44. The measures in sampling that are results of sample analyses are called

absolute statistics parameter
coverage estimators
population statistics
sample statistic

Discuss Question

Answer: Option D. -> sample statistic
Answer: (d).sample statistic

Question 45. IF the population standard deviation is not known then the formula used to calculate standard error is as

n - 1 ⁄ sample size square root
s ⁄ sample size square root
n + 1 ⁄ square root of s
n * 2 ⁄ sample size square root

Discuss Question

Answer: Option B. -> s ⁄ sample size square root
Answer: (b).s ⁄ sample size square root

Question 46. The theorem which states that as the sample size increases the sampling distribution must approach the normal distribution is classified as

limited approximation theorem
secondary limit theorem
primary limit theorem
central limit theorem

Discuss Question

Answer: Option D. -> central limit theorem
Answer: (d).central limit theorem

Question 47. All the values in sample distribution that can freely varies in the selected random sample from population are indicated as

degree of freedom
degree of error
degree of statistic
degree of possibility

Discuss Question

Answer: Option A. -> degree of freedom
Answer: (a).degree of freedom

Question 48. The conditions such as large sample size to represent population and samples must be drawn randomly are included in

principle of statistical regularity
principle of statistical irregularity
principle of sampling error
principle of inertia

Discuss Question

Answer: Option A. -> principle of statistical regularity
Answer: (a).principle of statistical regularity

Question 49. If the value of x-bar is 70 and the μ of sampling distribution is 15 with the standard deviation is 20 then the standard normal variable is