Commerce · all questions

Business Statistics and Research Methods
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Q161

When one regression coefficient is negative the other would be

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Q162

Match the following and choose the most appropriate option.

List-I	List-II
a. Median	1. Hypothesis
b. Standard Deviation	2. Positional Average
c. F-Test	3. Distance from mean value

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Q163

Which one of the following statistical approach must be adopted to deal with the issues of making estimates, predictions and decisions?

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Q164

In table, the wordings of stubs and captions should be . . . . . . . .

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Q165

The critical region of a test of hypothesis is equal to the

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Q166

The data are presented in time series:

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Q167

The measures used to calculate the variation present among the observations relative to their average is called:

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Q168

In sampling research, a study can be made to arrive at a concrete conclusion

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Q169

"Internal validity" refers to:

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Q170

In trees standard error of estimation 'n' stands for

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Q171

Which of the following is the non-random method of selecting samples from a given population?

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Q172

In regression analysis, it is assumed that there is an actual relationship between the . . . . . . . . and independent variable.

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Q173

Two cards are drawn from a well-shuffled pack of 52 cards. Find the probability that they are both aces if the first is replaced.

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Q174

The Standard deviation of Poisson distribution is:
(m = mean)

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Q175

Consider the given statement, "the conclusions obtained statistically are universally true". This statement is

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Q176

While constructing the cost-of-living index for a particular class, the commodities they consume have varying importance. Which of the following measures of central tendency should be counted as the best option?

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Q177

There are two equal numbers 5 and 5 in a series. What will be the geometric mean of the series?

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Q178

There are two types of measures of dispersion:

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Q179

If the standard deviation is 4, the number of observations is 10 and the sum of the terms is 160, then the value of the coefficient of deviation will be

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Q180

Which one of the following is not a method of studying association of attributes?

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