Online MCQ Assignment Answer

QN1: “Find the mode in following numbers:- 9,8,15,8,20”

a. 15

b. 8

c. 9

d. 20

Answer

Answer: b. 8

QN2: SPSS stands for which of the following?

a. Statistical Package for the Social Sciences

b. Statistics Problems Solved Smart

c. Simple Package for Science Statistics

d. Simple Program for Statistics and Science

Answer

Answer:a. Statistical Package for the Social Sciences

QN3: Mean or average used to measure central tendency is called

a. sample mean

b. arithmetic mean

c. negative mean

d. population mean

Answer

Answer:b. arithmetic mean

QN4: “The set of values of the statistic so obtained, one for each sample, constitutes what is called:”

a. Sampling distribution

b. Systematic sampling

c. Stratified sampling

d. Cluster sampling

Answer

Answer:a. Sampling distribution

QN5: The need for inferential statistical methods derives from the need for ___.

a. Population

b. Association

c. Sampling

d. Probability

Answer

Answer:c. Sampling

QN6: “A population, in statistical terms, is the totality of things under consideration. It is the collection of all values of the ___ that is under study.”

a. Instance

b. Variable

c. Amount

d. Measure

Answer

Answer:b. Variable

QN7: “In two units of company, employees in unit one are 650 and monthly salary is INR 2750, employees in unit two are 700 and monthly salary is INR 2500 then combined arithmetic mean is”

a. “INR 2,620”

b. “INR 2,520”

c. “INR 2,420”

d. “INR 2,320”

Answer

Answer:a. “INR 2,620”

QN8: “When an investigator uses the data which has already been collected by others, such data is called ___.”

a. Primary data

b. Collected data

c. Processed data

d. Secondary data

Answer

Answer:d. Secondary data

QN9: For any discrete distribution standard deviation is not less than

a. Mean deviation from mean

b. Mean deviation from median

c. Mode

d. None of these

Answer

Answer:a. Mean deviation from mean

QN10: Arithmetic mean is 25 and all sum of observations is 350 then number of observations are

a. 25

b. 70

c. 14

d. 75

Answer

Answer:c. 14

QN11: “Find the variance and standard deviation for the data:57,64, 43, 67, 49, 59, 44, 47, 61, 59”

a. 8.13

b. 4.2

c. 6.8

d. 8.89

Answer

Answer:a. 8.13

QN12: ___ is one which is collected by the investigator himself for the purpose of a specific inquiry or study.

a. Secondary data

b. Primary data

c. Statistical data

d. Published data

Answer

Answer:b. Primary data

QN13: Diagrams such as cubes and cylinders are classified as

a. one dimension diagrams

b. two dimension diagram

c. three dimensional diagrams

d. dispersion diagrams

Answer

Answer:c. three dimensional diagrams

QN14: Sampling is simply a process of learning about the ___on the basis of a sample drawn from it.

a. Census

b. Population

c. Group

d. Area

Answer

Answer:b. Population

QN15: Method used to compute average or central value of collected data is considered as

a. measures of positive variation

b. measures of central tendency

c. measures of negative skewness

d. measures of negative variation

Answer

Answer:b. measures of central tendency

QN16: “Find the range for the following data:14, 16, 16, 14, 22, 13, 15, 24, 12, 23, 14, 20, 17, 21, 22, 18, 18, 19, 20, 17, 16, 15, 11, 12, 21, 20, 17, 18, 19, 23”

a. 13

b. 12

c. 14

d. 16

Answer

Answer:a. 13

QN17: The sampling errors arise due to drawing faulty inferences about the ___ based upon the results of the samples.

a. Sample

b. Survey

c. Population

d. Census

Answer

Answer:c. Population

QN18: Which of the following statements are true?

a. “The larger the sample size, the greater the sampling error”

b. “The more categories or breakdowns you want to make in your data analysis, the larger the sample needed.”

c. “The fewer categories or breakdowns you want to make in your data analysis, the larger the sample needed.”

d. “As sample size decreases, so does the size of the confidence interval”

Answer

Answer: b. “The more categories or breakdowns you want to make in your data analysis, the larger the sample needed.”

QN19: “Value of ?fx is 180, A= 22, and width of class interval is 5, arithmetic mean is 120 then observations are”

a. 59

b. 30

c. 39.5

d. 49.5

Answer

Answer:b. 30

QN20: Branches of statistics includes

a. applied statistics

b. mathematical statistics

c. industry statistics

d. both a and b

Answer

Answer:d. both a and b

QN21: The probability of rejecting the null hypothesis when it is true is called:

a. Level of confidence

b. Level of significance

c. Power of the test

d. Difficult to tell

Answer

Answer:b. Level of significance

QN22: Any hypothesis which is tested for the purpose of rejection under the assumption that it is true is called:

a. Null hypothesis

b. Alternative hypothesis

c. Statistical hypothesis

d. Composite hypothesis

Answer

Answer:a. Null hypothesis

QN23: “If Y = 2 – 0.2X, then the value of Y intercept is equal to:”

a. -0.2

b. 2

c. 0.2X

d. All of the above

Answer

Answer:b. 2

QN24: The slope of the regression line of Y on X is also called the:

a. Correlation coefficient of X on Y

b. Correlation coefficient of Y on X

c. Regression coefficient of X on Y

d. Regression coefficient of Y on X

Answer

Answer:d. Regression coefficient of Y on X

QN25: Covariance can vary from

a. -1 to + 1

b. ‘-infinity to + infinity

c. -1 to 0

d. 0 to + 1

Answer

Answer:b. ‘-infinity to + infinity

QN26: “If the critical region is located equally in both sides of the sampling distribution of test-statistic, the test is called:”

a. One tailed

b. Two tailed

c. Right tailed

d. Left tailed

Answer

Answer: b. Two tailed

QN27: “When r=0 then covariance of (x,y) is equal to”

a. 1

b. -1

c. 0

d. None of these

Answer

Answer:c. 0

QN28: The dividing point between the region where the null hypothesis is rejected and the region where it is not rejected is said to be:

a. Critical region

b. Critical value

c. Acceptance region

d. Significant region

Answer

Answer:b. Critical value

QN29: “In simple linear regression, the numbers of unknown constants are:”

a. One

b. Two

c. Three

d. Four

Answer

Answer:b. Two

QN30: The choice of one-tailed test and two-tailed test depends upon:

a. Null hypothesis

b. Alternative hypothesis

c. None of these

d. Composite hypotheses

Answer

Answer:b. Alternative hypothesis

QN31: alfha / 2 is called:

a. One tailed significance level

b. Two tailed significance level

c. Left tailed significance level

d. Right tailed significance level

Answer

Answer:b. Two tailed significance level

QN32: The range of test statistic-Z is:

a. 0 to 1

b. -1 to +1

c. 0 to ?

d. ‘-? to +?

Answer

Answer:d. ‘-infinity to +infinity

QN33: “If byx = bxy = 1 and Sx = Sy, then r will be:”

a. 0

b. -1

c. 1

d. Difficult to calculate

Answer

Answer:c. 1

QN34: The predicted rate of response of the dependent variable to changes in the independent variable is called:

a. Slope

b. Intercept

c. Error

d. Regression equation

Answer

Answer:a. Slope

QN35: “In simple regression equation, the numbers of variables involved are:”

a. 0

b. 1

c. 2

d. 3

Answer

Answer:c. 2

QN36: Test of hypothesis Ho: μ = 50 against H1: μ > 50 leads to:

a. Left-tailed test

b. Right-tailed test

c. Two-tailed test

d. Difficult to tell

Answer

Answer:b. Right-tailed test

QN37: A hypothesis may be classified as:

a. Simple

b. Composite

c. Null

d. All of the above

Answer

Answer:d. All of the above

QN38: Karl pearson’s coefficient is defined from

a. Ungrouped data

b. Grouped data

c. Both

d. None

Answer

Answer:

QN39: “If byx = -2 and rxy= -1, then bxy is equal to:”

a. 1

b. -2

c. 0.5

d. -0.5

Answer

Answer:d. -0.5

QN40: The range of test statistic-t is:

a. 0 to ?

b. 0 to 1

c. ‘-? to +?

d. -1 to +1

Answer

Answer: c. ‘-Infinit to +infinity