# Objective Questions on Statistics

**Objective Questions on Statistics**

**1-The non-parametric equivalent of one way analysis of variance is : **

(a) Friedman test

(b) Kruskal Wallis test

(c) Cochran test

(d) Chi-square test

**2-Seasonal variations in a time series are computed using **

(a) Ratio to trend method

(b) Method of least squares

(c) Method of moving averages

(d) Periodogram analysis

**3-Which of the following is not a method of measuring trend in time series data ? **

(a) Method of semi averages

(b) Method of growth curves

(c) Link relative method

(d) Moving average method

**4-The component of time series attached to long term variations is termed as **

(a) Seasonal variation

(b) Cyclical variation

(c) Secular trend

(d) Irregular variation

**5-Identify the component of time series in “Increase in prices of vegetables due to floods”. **

(a) Secular trend

(b) Seasonal component

(c) Cyclical component

(d) Irregular component

**6-Which among the following is a type of control chart for variables ? **

(a) C – chart

(b) X bar chart

(c) p – chart

(d) d – chart

**7-For a number of defects chart if the LCL = 4 and UCL = 28, then the average number of defects per unit in the lot are **

(a) 16

(b) 20

(c) 32

(d) 28

**8-Which of the following test is used to test the randomness of a data set ? **

(a) Run Test

(b) Sign Test

(c) Kolmogrov-Smirnov test

(d) Mann-Whitney U

**9-Efficiency of cluster sampling decreases as the cluster size **

(a) decrease

(b) increase

(c) becomes unequal

(d) nothing can be said confidently

**10-For allocation of flights to the pilots, we make use of ? **

(a) Sequencing

(b) Transportation problem

(c) Project network technique

(d) Assignment problem

ANSWERS:

**11-Father of Linear programming problem is known as **

(a) R.A. Fisher

(b) G.B. Dantzig

(c) C.R. Rao

(d) None of these

**12-A curve showing the probability of accepting a lot of quality p is known as **

(a) O.C. curve

(b) A.S.N. curve

(c) Normal curve

(d) Lorenz curve

**13-Sequential Probability Ratio test of the general linear hypothesis terminates with probability **

(a) 0

(b) 0.5

(c) 1

(d) None of the above

**14-An abridged life table usually consists of ages at distance of **

(a) 5 to 10 years

(b) 15 to 20 years

(c) 25 to 30 years

(d) 35 to 40 years

**15-A linear combination of k treatments in which the sum of the co-efficients of the treatments is zero, is called a **

(a) Factorial experiment

(b) Contrast

(c) Treatment

(d) Experimental error

**16-If most of the points in a scatter diagram lie in Quadrant II and IV, then correlation co-efficient will be **

(a) negative

(b) positive

(c) zero

(d) nothing definite can be said

**17-Non-parametric tests are used to compare **

(a) estimates

(b) parameters

(c) distributions

(d) test statistics

**18-The mean of a distribution is 15 and its standard deviation is 6. What is its co-efficient of variation ?**

(a) 1.6

(b) 0.4

(c) 0.25

(d) None of the above

**19-To obtain the confidence interval for the variance, use is made of the statistic **

(a) t

(b) Chi-square

(c) F

(d) normal

**20-In case of systematic sampling if N = nk, then k is known as **

(a) sampling constant

(b) sampling interval

(c) sampling difference

(d) sampling fraction

**21-Which of the following methods is used for finding an optimal solution of an assignment problem ?**

(a) Johnson’s algorithm method

(b) Hungarian method

(c) Stepping stone method

(d) U-V method

**22-Neyman-Pearson lemma is used for finding most powerful (M.P.) test for **

(a) simple vs simple hypothesis

(b) simple vs composite hypothesis

(c) composite vs simple hypothesis

(d) composite vs composite hypothesis

**23-The number of times a treatment is repeated in an experiment is called **

(a) replication

(b) randomization

(c) treatments

(d) local control

**24-The most appropriate diagram to represent monthly expenditure of a family is **

(a) Histogram

(b) Pie-diagram

(c) Line-diagram

(d) Frequency polygon

**25-An experimental design, where the experimental units are randomly assigned to the treatments is known as **

(a) Factor block design

(b) Latin square design

(c) Randomized block design

(d) Completely randomized design

**26-If a distribution is highly peaked, then it can be said that it is **

(a) Meso-kurtic

(b) Platykurtic

(c) Leprokurtic

(d) None of the above

**27-If arithmetic mean of two numbers is 10 and their geometric mean is 8, then the two numbers are**

(a) 16 and 4

(b) 12 and 8

(c) 10 and 10

(d) 11 and 9

**28-Wilk’s lamda is used in **

(a) multiple regression analysis

(b) multivariate analysis of proportion

(c) multivariate analysis of variance

(d) None of the above

**ANSWERS:**

**1-(b). 2-(a), 3-(c), 4-(c), 5-(d), 6-(b), 7-(a), 8-(a), 9-(b), 10-(d), 11-(b), 12-(a), 13-(c), 14-(a), 15-(b), 16-(a), 17-(c), 18-(b), 19-(b), 20-(b), 21-(b), 22-(a), 23-(a), 24-(b), 25-(b), 26-(c), 27-(a), 28-(c)**