In hypothesis testing 'P' value ranges between
A. zero and infinity
B. minus infinity and plus infinity
C. zero and one
D. -1 and +1
Select an option to see the answer and solution.
Which of the following statement is true with regard to hypothesis testing of null and alternative hypothesis?
A. It is possible for neither hypothesis to be true
B. It is possible for both hypothesis to be true
C. Both hypothesis should be true
D. Exactly one hypothesis will be true
Select an option to see the answer and solution.
If the manager operates in a known environment then it is a
A. Closed decision making system
B. Planning system
C. Coordination system
D. Directing system
Select an option to see the answer and solution.
Which one of the following is a false statement?
A. A binomial distribution involves infinite number of trials
B. The mean and the variance of a poisson distribution are equal
C. The standard normal distribution has μ = 0 and ∂ = 1
D. The standard deviation of an exponential distribution is equal to its mean
Select an option to see the answer and solution.
DFDs includes
A. Process centre
B. Sources of documents
C. Documents in the system
D. All of the above
Select an option to see the answer and solution.
Which of the following statement is/are correct?
A. A system is defined and determined by its boundaries and objectives
B. If a system is functioning in isolation from the environment, then the system does not have any exchange with the environment nor is it influenced by the environmental changes
C. The information system is a combination of a person, the hardware and the software
D. All of the above
Select an option to see the answer and solution.
Situations in which χ 2 -test is not applicable is
A. to test the discrepancies between observed and expected frequencies
B. to test the goodness of fit
C. in case of large sample, where sample size is greater than 30
D. to determine association between two or more attributes
Select an option to see the answer and solution.
The size of Binomial distribution depends on
A. Value of 't'
B. Value of Z and B
C. Value of p and q
D. Value of X and Y
Select an option to see the answer and solution.
The MIS goals and objectives will consider . . . . . . . . of the firm.
A. Business risks
B. Policy constraints
C. Management philosophy
D. All of the above
Select an option to see the answer and solution.
What is the chance of drawing a queen in a draw from a pack of 52 cards?
Select an option to see the answer and solution.
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. 3n2 p2 q2 + 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
Select an option to see the answer and solution.
Given
N = 15, X = 25, Y = 18, ∑ dx 2 = 136, ∑ dy 2 = 138, ∑ dxdy = 122.
There correlation will be
A. +0.89
B. -0.89
C. +0.39
D. +0.072
Select an option to see the answer and solution.
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
Select an option to see the answer and solution.
The system processing is at a higher level, over the
A. Application processing
B. Accounting processing
C. Data processing
D. Transactional processing
Select an option to see the answer and solution.
If an event has no chance of taking place, probability will be
A. +1
B. 0
C. -1
D. Can't be known
Select an option to see the answer and solution.
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
Select an option to see the answer and solution.
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
Select an option to see the answer and solution.
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
Select an option to see the answer and solution.
If binomial distribution mean is 100 and standard deviation is 4, q will be
Select an option to see the answer and solution.
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
Select an option to see the answer and solution.