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Business Statistics and Research Methods
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Q761

Skewness will be negative, when

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Q762

The value of χ² in a 2 × 4 contingency table is computed as 4.0. The Null hypothesis that then no association ship will be accenpted at 5% level of significance, if this computed value is less than or equal to the value is less than or equal to the value of χ² from the table at . . . . . . . . degrees of freedom.

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Q763

In case of open-ended classes, an appropriate measure of dispersion to be used is:

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Q764

If N = 11, ΣX = 60, ΣX² = 1,000 , then standard deviation will be

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Q765

Scheduleis a list of questions, which is filled in by . . . . . . . . while questionnaire is filled in by the . . . . . . . . themselves.

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Q766

Which of the following is the tool of measures of the variation of items?

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Q767

What is the main disadvantage of the standard deviation?

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Q768

Null hypothesis and alternatives hypothesis is denoted by

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Q769

The regression equation of profits (X) on sales (Y) of a firm is given as: 3Y - 5X + 110 = 0. If the sales of the firm is Rs. 4,400, the profit will be

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Q770

Match the items of List-II with the items of List-I and select the option of correct matching.

List-I	List-II
a. Chi-square test	1. Testing the significance of the differences of the mean values among more than two sample groups
b. ANOVA (F-test)	2. Testing the goodness of fit of a distribution
c. Z-test	3. Testing the significance of the difference of the mean values between two large sized samples
d. T-test	4. Testing the significance of the difference of the mean values between two small sized samples when population standard deviation is not available

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Q771

Probable error extracted

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Q772

The age number of the students of a class are 15, 17,18, 20, 22, 24, 21, 17, 16, 15, 21, 22, 23, 22, 17, 22, 18, 22, 19 and 20. What will be mode of the series?

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Q773

Consider the following statistical tests.
1. 'F' test
2. 'T' test
3. 'Z' test
4. 'Chi-square' test
Which of these are parametric tests?

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Q774

If correlation coefficient is 0.8 then the coefficient of alienation shall be-

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Q775

Data obtained from statistical journal-

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Q776

The range based on middle 50% of the observations is called . . . . . . . .

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Q777

What is the median of 36, 72, 49, 45, 60, 33, 61, 72, 52?

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Q778

The following equation indicates the relationship among average median and mode:

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Q779

If two events A and B are independent, the probability that they will both occur is given by:

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Q780

In 'Less than' cumulative frequency distribution, the omitted limit is

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