Statistics MCQ Questions and Answers
41- Which one problem out of the four is not related to stratified sampling?
(A) fixing the points of demarcation between strata
(B) fixing the sample size
(C) fixing the number of strata
(D) fixing the criterion for stratification
42- With a lower significance level, the probability of rejecting a null hypothesis that is actually true:
(A) Decreases
(B) Remains the Same
(C) Increases
(D) All of the Above
43- The time period between placing an order its receipt in stock is known as
(A) Lead time
(B) Carrying time
(C) Shortage time
(D) Over time
44- Chance or random variation in the manufactured product is:
(A) Controllable
(B) Not controllable
(C) Both
(A) and (B) (D) None of the above
45- Which of the following is true for Inventory control?
(A) Economic order quantity has minimum total cost per order
(B) Inventory carrying costs increases with quantity per order
(C) Ordering cost decreases with lo size
(D) All of the above
46- The sampling procedure that includes all units of the population in the study is called
(A) Complete coverage
(B) Saturation survey
(C) Survey population
(D) (A) and (B) above
47- Heteroscedasticity is more common in
(A) Time-series data than cross-Sectional data
(B) Cross-sectional data than time-series data
(C) Panel data
(D) Meta Data
48- To control the quality of a specific resistance of a wire, one can use
(A) X bar-chart
(B) R-chart
(C) Both (A) and (B)
(D) None of these
49- The advantage of using statistical sampling techniques is that such techniques
(A) Mathematically measure risk
(B) Eliminate the need for judgmental decisions
(C) Are easier to use than other sampling techniques
(D) Have been established in the courts to be superior to non-statistical sampling
50- The set of equations obtained in the process of least square estimation are called:
(A) Normal Equations
(B) Intrinsic Equations
(C) Simultaneous Equations
(D) All of the Above
ANSWERS:
41-(B), 42-(A), 43-(A), 44-(B), 45-(D), 46-(D), 47-(B), 48-(C), 49-(A), 50-(A)