Business Statistics

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71.
Match the following.

List-I (Moments) List-II (Constants of Binomial Distribution)

a. μ₁ 1. 0

b. μ₂ 2. npq

c. μ₃ 3. npq (q - p)

d. μ₄ 4. 3n²p²q² + npq (1 - 6pq)

A. a-1, b-4, c-2, d-3

B. a-1, b-2, c-3, d-4

C. a-4, b-1, c-2, d-3

D. a-4, b-3, c-2, d-1

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72.
Given
N = 15, $$\overline X $$ = 25, $$\overline Y $$ = 18, $$\sum $$d_x² = 136, $$\sum $$d_y² = 138, $$\sum $$dxdy = 122.
There correlation will be

A. +0.89

B. -0.89

C. +0.39

D. +0.072

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73.
A collection of information through the library reports and the research studies to build up a knowledge base as a information source for decision making is known as

A. External information

B. Knowledge information

C. Planning information

D. Control information

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74.
The system processing is at a higher level, over the

A. Application processing

B. Accounting processing

C. Data processing

D. Transactional processing

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75.
If an event has no chance of taking place, probability will be

A. +1

B. 0

C. -1

D. Can't be known

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76.
Which of the following statement is incorrect with regard to questionnaires?

A. A well designed questionnaires improves accuracy of results

B. Questionnaire is a part ofsecondary data collection

C. Technical jargon and unambiguous words should not be used while preparing questionnaire

D. None of the above

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77.
160 heads and 240 tails resulted from 400 tosses of a coin. Find a 95% confidence interval for the probability of a head. Does this appear to be a fair coin?

A. Cannot be said to be fair

B. Can be or cannot be said to be fair

C. Can be said to be fair

D. Yes with +1

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78.
Average sales of Bata Shoe Co's multiple shops are Rs. 12,500 per month with a standard deviation of Rs. 4050. Find out what proportion of all shops sold between Rs. 12,500 and Rs. 16,550?

A. Rs. 12,500 and Rs. 16,550

B. Rs. 12,000 and Rs. 16,000

C. Rs. 13,000 and Rs. 16,000

D. Rs. 12,000 and Rs. 13,900

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79.
If binomial distribution mean is 100 and standard deviation is 4, q will be

A. 0.12

B. 0.16

C. 0.25

D. 0.4

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80.
A type II error occurs when

A. the null hypothesis is incorrectly accepted when it is false

B. the null hypothesis is incorrectly rejected when it is true

C. the sample mean differs from the population mean

D. the test is biased

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1 2 3 4 5 6 7 8 9 10

List-I (Moments)	List-II (Constants of Binomial Distribution)
a. μ₁	1. 0
b. μ₂	2. npq
c. μ₃	3. npq (q - p)
d. μ₄	4. 3n²p²q² + npq (1 - 6pq)

Business Statistics

71. Match the following. List-I (Moments) List-II (Constants of Binomial Distribution) a. μ1 1. 0 b. μ2 2. npq c. μ3 3. npq (q - p) d. μ4 4. 3n2p2q2 + npq (1 - 6pq)

Answer & Solution

72. Given N = 15, $$\overline X $$ = 25, $$\overline Y $$ = 18, $$\sum $$dx2 = 136, $$\sum $$dy2 = 138, $$\sum $$dxdy = 122. There correlation will be

Answer & Solution

73. A collection of information through the library reports and the research studies to build up a knowledge base as a information source for decision making is known as

Answer & Solution

74. The system processing is at a higher level, over the

Answer & Solution

75. If an event has no chance of taking place, probability will be

Answer & Solution

76. Which of the following statement is incorrect with regard to questionnaires?

Answer & Solution

77. 160 heads and 240 tails resulted from 400 tosses of a coin. Find a 95% confidence interval for the probability of a head. Does this appear to be a fair coin?

Answer & Solution

78. Average sales of Bata Shoe Co's multiple shops are Rs. 12,500 per month with a standard deviation of Rs. 4050. Find out what proportion of all shops sold between Rs. 12,500 and Rs. 16,550?

Answer & Solution

79. If binomial distribution mean is 100 and standard deviation is 4, q will be

Answer & Solution

80. A type II error occurs when

Answer & Solution

Read More Section(Business Statistics)

71.
Match the following.

List-I (Moments) List-II (Constants of Binomial Distribution)

a. μ₁ 1. 0

b. μ₂ 2. npq

c. μ₃ 3. npq (q - p)

d. μ₄ 4. 3n²p²q² + npq (1 - 6pq)

72.
Given
N = 15, $$\overline X $$ = 25, $$\overline Y $$ = 18, $$\sum $$d_x² = 136, $$\sum $$d_y² = 138, $$\sum $$dxdy = 122.
There correlation will be

73.
A collection of information through the library reports and the research studies to build up a knowledge base as a information source for decision making is known as

74.
The system processing is at a higher level, over the

75.
If an event has no chance of taking place, probability will be

76.
Which of the following statement is incorrect with regard to questionnaires?

77.
160 heads and 240 tails resulted from 400 tosses of a coin. Find a 95% confidence interval for the probability of a head. Does this appear to be a fair coin?

78.
Average sales of Bata Shoe Co's multiple shops are Rs. 12,500 per month with a standard deviation of Rs. 4050. Find out what proportion of all shops sold between Rs. 12,500 and Rs. 16,550?

79.
If binomial distribution mean is 100 and standard deviation is 4, q will be

80.
A type II error occurs when