Recent Question

The hypothesis which is under test for possible rejection 1. A population has a standard deviation of 16. If a sample of size 64 is selected from this population, what is the probability that the sample mean will be within 2 of the population mean? (i) 0.6826 (ii) 0.3413 (iii) -0.6826 (iv) -0.3413 2. If the variance of an estimator attains its Cramer-Rao lower bound for variance, then the estimator is (i) Most efficient (ii) ...

Other / Other 21 May 2016

The probability distribution of all possible values of the sample proportion p is 1. As the sample size becomes larger, the sampling distribution of the sample mean approaches a, (i) Binomial distribution (ii) Poisson distribution (iii) Normal distribution (iv) chi-square distribution 2. Whenever the population has a normal probability distribution, the sampling distribution of x is a normal probability distribution for, (i) Only la ...

Other / Other 21 May 2016

In case of finding the confidence interval for mean of a normal population with known 1. In case of finding the confidence interval for mean of a normal population with known SD, the table values are taken from, (i)t - table (ii) standard normal table (iii) Chi-square table (iv) None of these 2. In case of finding the confidence interval for mean of a normal population with unknown SD, the table values are taken from, (i)t - table ...

Other / Other 21 May 2016

As n become large a chi-square variable with n degrees of freedom 1. The probability distribution of the sum of squares of ‘n’ independent standard normal random variables is, (i) Normal (ii) Chi-square (iii) t (iv) None of these 2. As n become large a chi-square variable with n degrees of freedom follows, (i) N (n, 2n ) (ii) N (n, 2n ) (iii) N (2n, 2n ) (iv) None of these 3. ‘student’ is the penname of, (i ...

Other / Other 21 May 2016

Which of the following is a sampling distribution 1. Random sample taken from a population then the function of sample values is known as: (i)Parameter (ii) Statistic (iii) population (iv) Nome of these. 2. The probability distribution of a statistic is, (i) Sampling distribution (ii) distribution function (iii) Mass function (iv) None of these 3. A population characteristic, such as a population mean, is called (i) A statistic (ii) ...

Other / Other 21 May 2016

The ratio of two independent standard normal random variables is 1. Sampling distribution of x is the (i) Probability distribution of the sample mean (ii) Probability distribution of the sample proportion (iii) Mean of the sample (iv) Mean of the population 2. If n increases, the student’s t distribution tends to (i) Normal (ii) F (iii) Cauchy (iv) None of these 3. The ratio of two independent standard normal random varia ...

Other / Other 21 May 2016

The method of moments was invented by 1. The probability that an interval contains the parameter value is called, (i)Confidence limit (ii) Confidence coefficient (iii) Confidence interval (iv) None of these 2. Confidence interval for the variance of a normal population involves (i) Std. normal distribution (ii) Chi- distribution (iii) F- distribution (iv) None of these 3. The difference between estimate and parameter in a sample su ...

Other / Other 21 May 2016

What is the standard deviation of a sampling distribution called 1. The mean difference between 10 paired observations is 15 and the SD of differences is 5. The value of statistic t is, (i) 27 (ii) 9 (iii) 3 (iv) None of these 2. Which of the following symbols represents a population parameter? (i) SD (ii) σ (iii) r (iv) None of these 3. What does it mean when you calculate a 95% confidence interval? (i) The process you used ...

Other / Other 21 May 2016

Which of the following is a positive reaction to the blockage of a desired goal 1. A series of expectations between an individual and the organisation which are not defined formally, but which will influence the motivation to work is: a. the physiological contract. b. the psychological contract. c. the sociological contract. d. the social contract. 2. Which of the following is a positive reaction to the blockage of a desired goal ? ...

Other / Other 21 May 2016

What best describes the Adult ego state 1. Which of the following will influence an individual's perceptions? a. Individual needs. b. Previous experiences. c. Sensory limitations. d. All of these. 2. Which two of the following are terms used by Cook to describe the two kinds of information used in an social encounter? a. Static information b. Dynamic information. c. Primary information. d. Both (a)&(b) 3. Which three of the fol ...

Other / Other 21 May 2016