Business Statistics — Part 2 MCQs with Explanations

Day of the week is the correct answer to “An experimenter tests the hypothesis that physical exercise helps people's mood (makes them happier). Subjects in the ex perimental group participate on Monday and Tuesday and those in the control an Wednesday and Thursday. What is the extraneous (confounding) variable”. This question is standard in competitive examination syllabi for Business Statistics.

Geometric Mean is the correct answer to “Which of the following measures of central tendency is used when the data changes over a period of time”. This question is standard in competitive examination syllabi for Business Statistics.

$$\frac{N}{{N - 1}}$$ is the correct answer to “Bessel's correction's”. This question is standard in competitive examination syllabi for Business Statistics.

A transcript from a group is the correct answer to “Which of the folIowing represents primary data”. This question is standard in competitive examination syllabi for Business Statistics.

a-3, b-4, c-1, d-2 is the correct answer to “Match the following List-I (Types of system) List-II (Elements) a. Data processing 1. Sales b. Transaction 2. Process processing management c. Functional system 3. Focus on computing d. Integrated 4. Transaction execution”. This question is standard in competitive examination syllabi for Business Statistics.

Compound events is the correct answer to “Given What will be AB in above diagram as per probability theory”. This question is standard in competitive examination syllabi for Business Statistics.

74% is the correct answer to “Suppose that in a box of 80 bulbs packed, the mean number of defects per box is 0.3. What percent of bulbs will have no mistake”. This question is standard in competitive examination syllabi for Business Statistics.

The degree of freedom are larger than the number of categories is the correct answer to “Which of the following is possible in a chi-square goodness of fit test”. This question is standard in competitive examination syllabi for Business Statistics.

Programmed decision is the correct answer to “If a decision can be based on a rule, method or even guidelines it is called”. This question is standard in competitive examination syllabi for Business Statistics.

to test hypothesis related with popula tion mean is the correct answer to “Which one is not objective of MIS”. This question is standard in competitive examination syllabi for Business Statistics.

All of the above is the correct answer to “Information technology strategic decision includes”. This question is standard in competitive examination syllabi for Business Statistics.

Adherence to business rules, correctness and consistency of data value and for validity of transaction for acceptance is the correct answer to “The transaction is processed for”. This question is standard in competitive examination syllabi for Business Statistics.

Auditing is the correct answer to “Which of the following is/are not the basic feature of ERP”. This question is standard in competitive examination syllabi for Business Statistics.

Simple random is the correct answer to “Which of the following is a probability method”. This question is standard in competitive examination syllabi for Business Statistics.

All of the above is the correct answer to “Which of the following is/are part of decision support system”. This question is standard in competitive examination syllabi for Business Statistics.

zero is the correct answer to “If A and B are mutually exclusive events P(AB) =”. This question is standard in competitive examination syllabi for Business Statistics.

regression equation is the correct answer to “Given, $${\sum _y} = {N_a} + b{\sum _y}$$ the above is a”. This question is standard in competitive examination syllabi for Business Statistics.

Data is communicated is the correct answer to “Validation testing is taken up when the”. This question is standard in competitive examination syllabi for Business Statistics.

Hurwicz criterion is the correct answer to “The decision criterion in which a decision maker selects an alternative that maximises H (criterion of realism) = [a × (maximum in column)] + [(1- a) × (minimum in column)] is called”. This question is standard in competitive examination syllabi for Business Statistics.

Probability is the correct answer to “Probability density function gives the rate at which the . . . . . . . . would accumulate if we were to sweep from left to right on the axis of the value of continuous random variable.”. This question is standard in competitive examination syllabi for Business Statistics.

The ratio of change between the variables is constant and change in one variable is equal to the percentage change in other variable respectively is the correct answer to “Correlation is said to be linear and non-linear if”. This question is standard in competitive examination syllabi for Business Statistics.

All of the above is the correct answer to “Which of the following can be used to determine correlation”. This question is standard in competitive examination syllabi for Business Statistics.

All of the above is the correct answer to “About normal distribution the correct statement is”. This question is standard in competitive examination syllabi for Business Statistics.

Parent population is normal in nature is the correct answer to “For t-test the assumptions is”. This question is standard in competitive examination syllabi for Business Statistics.

mechanical is the correct answer to “MIS feasibility study does not include . . . . . . . . feasibility.”. This question is standard in competitive examination syllabi for Business Statistics.

$$\frac{{15}}{{16}}$$ is the correct answer to “Find the probability that in a family of 4 children there will be at least one boy. Assume that the probability of a male birth is $$\frac{1}{2}$$.”. This question is standard in competitive examination syllabi for Business Statistics.

Type II is the correct answer to “. . . . . . . . errors are made when we accept a null hypothesis which is not true.”. This question is standard in competitive examination syllabi for Business Statistics.

Network topology is the correct answer to “. . . . . . . . is a process of transporting the data from one location to the other”. This question is standard in competitive examination syllabi for Business Statistics.

233 is the correct answer to “Six dice are thrown 729 times. How many times do you expect the dice to show five or six”. This question is standard in competitive examination syllabi for Business Statistics.

Rs. 106 lakh is the correct answer to “You are given the following information about advertising expenditure and sales. Advertisement (X) Sales (Y) (Rs. in lakh) Arithmetic Mean 10 90 Standard Deviation 3 12 Correlation coefficient between advertising expenditure and sales 0.80. What is the likely sales for advertising budget of Rs. 15 lakh”. This question is standard in competitive examination syllabi for Business Statistics.

$$\frac{1}{2}$$ is the correct answer to “From a well shuffled pack of 52 cards a card is selected at random. Find the probability that it is a black coloured card”. This question is standard in competitive examination syllabi for Business Statistics.

All of the above is the correct answer to “Management information system plan includes”. This question is standard in competitive examination syllabi for Business Statistics.

Difference is significant is the correct answer to “In two large populations there are 35 and 30 per cent of fair haired people. Will the differ ence disappear at 5% level of significance, if samples of 1500 and 1000 are respectively taken from the two populations”. This question is standard in competitive examination syllabi for Business Statistics.

0.89 is the correct answer to “Given, N = 15, $$\overline {\text{X}} $$ = 25, $$\overline {\text{Y}} $$ = 18, $$\sum $$d 2 x = 136, $$\sum $$d 2 y = 138, $$\sum $$dxdy = 122. Calculate the correlation coefficient.”. This question is standard in competitive examination syllabi for Business Statistics.

Cannot be is the correct answer to “A coin is tossed 1000 times and head comes out 550 times. Can the deviation from expected value be due to fluctuations of simple sampling”. This question is standard in competitive examination syllabi for Business Statistics.

Total number of equally is the correct answer to “Probability is the ratio of favourable events to the . . . . . . . . of equally likely events.”. This question is standard in competitive examination syllabi for Business Statistics.

Theoretical Frequency Distribution is the correct answer to “Distributions which are not obtained by actual observations but are reduced mathematically under certain definite hypothesis or assumptions are called”. This question is standard in competitive examination syllabi for Business Statistics.

Symmetrical is the correct answer to “When coefficient of skewness is zero the distribution is”. This question is standard in competitive examination syllabi for Business Statistics.

$$\frac{{{\text{Standard deviation of the sample}}}}{{\sqrt {{\text{Sample size}}} }}$$ is the correct answer to “Standard error of mean computed by”. This question is standard in competitive examination syllabi for Business Statistics.

Departure pattern in a departmental store is the correct answer to “Which of the following application does not belong to Poisson distribution”. This question is standard in competitive examination syllabi for Business Statistics.