Management · all questions

Business Statistics
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Q101

Interviewing all members of a given population is called

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Q102

Twenty-one students took a management course examination. The sample variance is found to be 80. The teacher claims that based on his past experience the true variance has been at least 100. Does the sample result show that the population variance significantly less than 100?

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Q103

Secondary data cannot help in

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Q104

In which one of the following probability distributions, the mean value of the distribution is the sole parameter of the distribution?

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Q105

If r_xy = 0.38, r_xz = 0.62 and r_yz = 0.91. Find the partial correlation between x and y with z held fixed

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Q106

Match the following

List-I (Types of Network Topology)	List-II (Connection)
a. Bus	1. Connected through one cable
b. Star	2. Connected through central system
c. Ring	3. Connected with cable layout
d. LAN	4. Within department

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Q107

All causes non-sampling errors except

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Q108

If the variables are independent, r is zero and the lines of regression are at

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Q109

The . . . . . . . . of r (correlation) is an amount which if added to and subtracted from the average correlation co-efficient produces amounts within which the chances are even that a co-efficient of correlation from a series error selected at random will fall

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Q110

Given

Business Statistics mcq question image

This is a . . . . . . . . problem.

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Q111

F = \frac{S ^{2} _{1}}{S ^{2} _{2}}

is a

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Q112

Most experimental subjects try to help the researcher by doing their best to perform as they think they should. This problem is called

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Q113

The inventory application is designed to

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Q114

The probable error can be calculated by

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Q115

Match the following.

List-I	List-II
a. Judgement	1. Probability sampling
b. Stratified	2. Non-random sampling
c. Cluster	3. Non-probability sampling
d. Quota	4. Random sampling

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Q116

Which of the following statements are true?
1. The classical approach to probability theory requires that the total number of possible outcomes be known or calculated and that each of the outcomes be equally likely.
2. A marginal probability is also known as unconditional probability.
3. For three independent events, the joint probability of the three events, P (ABC) = P (A) × P (B/A) × P (C/AB)
4. Two events are mutually exclusive, exhaustive and equally likely, the probability of either event A or B or both occurring P(A or B) = P(A) + P(B)

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Q117

The form of alternative hypothesis can be

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Q118

The value of Karl Pearson's co-efficient of correlation may be

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Q119

Control methods are used to

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Q120

If p = q =

\frac{1}{2}

, the frequency distribution will be

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