Business Statistics and Research Methods MCQ Questions and Solutions with Explanations

Business Statistics and Research Methods MCQ Questions and Solutions with Explanations | Commerce

Business Statistics and Research Methods MCQ Questions and answers with easy and logical explanations. Commerce provides you all type of quantitative and competitive aptitude mcq questions with easy and logical explanations. Business Statistics and Research Methods MCQ is important for exams like B.COM, M.COM, BBA, BBM, CA, CS, CMA, CPA, CFA, UPSC, NET, Banking and other commerce department exam. Page-8 section-10

Statistical average has significance due to following sequence.
1. To present huge mass of data ina summarised form.
2. To facilitate comparison of different sets of data.
3. To help decision-making.
Select the correct answer using the options given below

A) 1, 2, 3 B) 2, 3, 1 C) 2, 1, 3 D) 3, 2, 1

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Answer: Option A

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We call the classification of employees on the basis of education and attributes

A) Two-way classification or bidirectional classification B) Multivariate classification or multidirectional classification C) One-way classification D) Time series

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Answer: Option A

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If unexplained variation between variables X and Y is 36%, what is the coefficient of correlation between the variables?

A) 0.36 B) 0.64 C) 0.60 D) 0.80

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Answer: Option D

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Consider the following statements.
Statement-I: When a null hypothesis gets rejected in statistical hypothesis testing, it is known as II type error in hypothesis testing.
Statement-II: When a sample is small sized and parametric value of the standard deviation is not known, z-test is the most appropriate test for hypothesis testing.

A) Both statements are correct B) Both statements are incorrect C) Statement-I is correct while starement-II is incorrect D) Statement-I is incorrect while sratement-II is correct

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Answer: Option B

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Goodness of fit of a distribution is tested by:

A) T test B) F-test C) z-test D) Chi-square test

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Answer: Option D

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The most important factors causing seasonal variations are

A) growth of population B) technological improvements C) weather and social customs D) change in fashions

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Answer: Option C

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Regression model is a statistical framework for developing a mathematical equation that describes how:

A) one explanatory and one or more response variables are related B) several explanatory and several response variables response are related C) one response and one or more explanatory variables are related D) all of these are correct

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Answer: Option C

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Which of the following statement(s) is/are correct?

A) When n is small, the T-distribution is far from normal B) When n is infinite, it is identical with normal distribution C) Both A and B D) Neither A nor B

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Answer: Option C

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If the number of observations is such that n_x n_y is large (n > 20), a normal approximation can be used with

A) $${\mu _\mu } = \frac{{{n_x}}}{{{n_y}}}$$ B) $${\mu _u} = \frac{{{n_y}}}{{{n_x}}}$$ C) $${\mu _\mu } = \frac{{{n_x}.{n_y}}}{2}$$ D) $${\mu _u} = \frac{{{n_x}.{n_y}}}{4}$$

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Answer: Option C

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Positive perfect correlation is

A) +1 B) -1 C) 0 D) None of these

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Answer & Solution

Answer: Option A

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