Business Statistics And Research Methods - Study Mode

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[#786] Type of cumulative frequency distribution in which class intervals are added in top to bottom order is classified as

(A) Marginal distribution

(B) Variation distribution

(C) Less than type distribution

(D) More than type distribution

Correct Answer

(C) Less than type distribution

[#787] In the application of chi-square, 1. no theoretical frequency should be small since in the derivation of chi-square continuity assumptions are made. 2. the constraint imposed on cell frequencies must be linear. 3. regroup the frequencies whenever some expected frequency was small. 4. the correction is needed, when some cell frequency was small, i.e. less than 5. Which of the statements given above are correct?

(A) 1, 2 and 3

(B) 2, 3 and 4

(C) 1, 3 and 4

(D) None of these

Correct Answer

(B) 2, 3 and 4

[#788] The essential qualities of a researcher are:

(A) Spirit of free enquiry

(B) Reliance on observation and evidence

(C) Systematization or theorizing of knowledge

(D) All the above

Correct Answer

(D) All the above

[#789] Which of the following steps would be included in hypothesis testing? 1. State the null and alternative hypothesis. 2. Set the significance level before the research study. 3. Eliminate all outliers. 4. Obtain the probability value using a computer program such as SPSS. 5. Compare the probability value to the significance level and make the statistical decision.

(A) 1, 3 and 4

(B) 3, 4 and 5

(C) 1, 2, 4 and 5

(D) 2, 3, 4 and 5

Correct Answer

(C) 1, 2, 4 and 5

[#790] Which one of the following is not the correct property of normal distribution?

(A) Continuous distribution

(B) Equality of central values (Mean, Mode and median)

(C) Standard deviation is the sole parameter of the distribution

(D) Uni-modal distribution

Correct Answer

(C) Standard deviation is the sole parameter of the distribution