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Business Statistics and Research Methods
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Q601

The dependent variable is also called:

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Q602

In using the T-test, we assume which of the following?

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Q603

. . . . . . . . error are made when we accept a null hypothesis which is not true.

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Q604

The errors which do not occur in census investigation are

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Q605

If A and B are mutually exclusive events P (AB) = ?

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Q606

Consider the following statements.
Statement-I: The heading for columns and rows are called caption and stub respectively.
Statement-II: Sturge's Rule is used to decide the nature of manifold classification.
Which of the following is correct?

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Q607

In case of business forecasting which of the following statements in not correct?

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Q608

Given the following data - 1, 2, 3, 4 and 100, the best measure of central tendency is the

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Q609

For 3X2 contingency table, the degree of freedom for testing the hypothesis is

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Q610

Any sampling process which does not ensure some for each element in the population to be included in the sample would be non-probability sampling or sampling.

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Q611

When both the lower and upper limits of a class are included such classes are called

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Q612

The lower and upper quartiles of a distribution are 80 and 120 respectively, while median is 100. The shape of the distribution is:

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Q613

Process of arranging data into a new order is called:

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Q614

Which of the following is not a primary activity in Michael Porter's value chain?

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Q615

Which of the following is/are related with the utility of correlation?

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Q616

Which two of the following statements are true?
(1) Skewness studies the flatness or peakedness of the distribution
(2) A positively skewed distribution curve is stretched more to the right than to the left
(3) On the basis of empirical relationship between mean, mode and median for moderately asymmetrical distribution, Karl Pearson's coefficient of skewness can be measured by 3 (Mean-Median) divided by Standard Deviation
(4) If mean > mode, the distribution is positively skewed
Choose the correct option from those below:

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Q617

Which one of the following formulae is used to calculate the standard error of coefficient of correlation between 25 paired observations of a sample?

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Q618

Student's 't' Distribution was discovered by:

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Q619

A perfect correlation is signified by

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Q620

With reference to the time series analysis which of the following statement is/are correct?
(1) Time series analysis is not used when the values are constant
(2) Time series analysis is not used when the values are in the form of a function
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