Business Statistics

61

Given, $${\sum _y} = {N_a} + b{\sum _y}$$ the above is a

A) mean equation B) correlation equation C) regression equation D) poisson distribution

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Answer & Solution

Answer: Option C

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62

Which of the following statement is/are correct?

A) The functional information can be assessed on the work design, the responsibility and the functional objectives basis B) The functional information is used for assessing particular aspects of the business C) The knowledge information creates an awareness of those aspects of business where the manager is forced to think, decide and act D) All of the above

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Answer & Solution

Answer: Option D

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63

Validation testing is taken up when the

A) Data is communicated B) Data has been assured C) Data is collected D) Integration phase confirmed

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Answer & Solution

Answer: Option A

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64

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

A) Laplace criterion B) Hurwicz criterion C) Wald's criterion D) Bayesian criterion

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Answer & Solution

Answer: Option B

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65

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.

A) Probability B) Mode C) Mean D) Average

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Answer & Solution

Answer: Option A

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66

Correlation is said to be linear and non-linear if

A) The ratio of change between the variables is constant B) The ratio of change between the variables is constant and change in one variable is equal to the percentage change in other variable respectively C) Change in variables are haphazard D) Change in one variable is equal to the percentage change in another variable

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Answer & Solution

Answer: Option B

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67

Which of the following can be used to determine correlation?

A) Simple graphical method B) Karl Pearson's coefficient C) Least square method D) All of the above

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Answer & Solution

Answer: Option D

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68

About normal distribution the correct statement is

A) Normal distribution is a continuous probability distribution B) Range of normal distribution is from $$ - \infty $$ to $$ + \infty $$ C) Normal distribution is perfectly symmet rical D) All of the above

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Answer & Solution

Answer: Option D

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69

For t-test the assumptions is

A) Parent population is normal in nature B) Sample is not random in nature C) Population standard deviation is given D) Both the population have same variance

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Answer & Solution

Answer: Option A

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70

MIS feasibility study does not include . . . . . . . . feasibility.

A) economic B) mechanical C) technical D) operational

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Answer & Solution

Answer: Option B

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