MCQ SAMPLING AND SAMPLING DISTRIBUTIONS MCQ 11.1 Sample is a sub-set of: (a) Population (b) Data (c) Set (d) Distribution MCQ 11.2 Any population constant is called a: (a) Statistic (b) Parameter (c) Estimate (d) Estimator MCQ 11.3 List of all the units of the population is called: (a) Random sampling (b) Bias (c) Sampling frame (d) Probability sampling MCQ 11.4 Any calculation on the sampling data is called: (a) Parameter (b) Static (c) (d) Error MCQ 11.5 Any measure of the population is called: (a) Finite (b) Parameter (c) Without replacement (d) Random MCQ 11.6 If all the units of a population are surveyed, it is called: (a) Random sample (b) Random sampling (c) Sampled population (d) Complete enumeration MCQ 11.7 Probability distribution of a statistics is called: (a) Sampling (b) Parameter (c) Data (d) Sampling distribution MCQ 11.8 The difference between a statistic and the parameter is called: (a) Probability (b) Sampling error (c) Random (d) Non-random MCQ 11.9 The sum of the frequencies of the frequency distribution of a statistic (a) Sample size (b) Population size (c) Possible samples (d) Sum of X values MCQ 11.10 Standard deviation of sampling distribution of a statistic is called: (a) Serious error (b) Dispersion (c) Standard error (d) Difference MCQ 11.11 If we obtain a point estimate for a population mean µ, the difference between and µ is: (a) Standard error (b) Bias (c) Error of estimation (d) Difficult to tell MCQ 11.12 A distribution formed by all possible values of a statistics is called (a) Binomial distribution (b) Hypergeometric distribution (c) Normal distribution (d) Sampling distribution MCQ 11.13 In probability sampling, probability of selecting an item from the population is known and is: (a) Equal to zero (b) Non zero (c) Equal to one (d) All of the above
MCQ 11.14 A population about which we want to get some information is called: (a) Finite population (b) Infinite population (c) Sampling population (d) Target population MCQ 11.15 The population consists of the results of repeated trials is named as: (a) Finite population (b) Infinite population (c) Real population (d) Hypothetical population MCQ 11.16 A population consisting of the items which are all present physically is called: (a) Finite population (b) Infinite population (c) Real population (d) Hypothetical population MCQ 11.17 Study of population is called: (a) Parameter (b) Statistic (c) Error (d) Census MCQ 11.18 For making voters list in Pakistan we need: (a) Sampling error (b) Standard error (c) Census (d) Simple random sampling MCQ 11.19 Sampling based upon equal probability is called: (a) Probability sampling (c) Simple random sampling (b) Systematic sampling (d) Stratified random sampling MCQ 11.20 In sampling with replacement, an element can be chosen: (a) Less than once (b) More than once (c) Only once (d) Difficult to tell MCQ 11.21 Standard deviation of sample mean without replacement standard deviation of sample mean with replacement: (a) Less than (b) More than (c) 2 times (d) Equal to MCQ 11.22 In sampling without replacement, an element can be chosen: (a) Less than once (b) More than once (c) Only once (d) Difficult to tell MCQ 11.23 In sampling with replacement, the following is always true: (a) n = N (b) n < N (c) n > N (d) All of the above MCQ 11.24 Which of the following statement is true? (a) Standard error is always one (c) Standard error is always negative (b) Standard error is always zero (d) Standard error is always positive MCQ 11.25 Random sampling is also called: (a) Probability sampling (b) Non-probability sampling (c) Sampling error (d) Random error MCQ 11.26 Non-random sampling is also called: (a) Biased sampling (b) Non-probability sampling (c) Random sampling (d) Representative sample
MCQ 11.27 Sampling error can be reducing by: (a) Non-probability sampling (c) Decreasing the sample size (b) Increasing the population (d) Increasing the sample size MCQ 11.28 The selection of cricket team for the world cup is called: (a) Random sampling (b) Systematic sampling (c) Purposive sampling (d) Cluster sampling MCQ 11.29 A complete list of all the sapling units is called: (a) Sampling design (b) Sampling frame (c) Population frame (d) Cluster MCQ 11.30 A Plan for obtaining a sample from a population is called: (a) Population design (b) Sampling design (c) Sampling frame (d) Sampling distribution MCQ 11.31 If a survey is conducted by a sampling design is called: (a) Sample survey (b) Population survey (c) Systematic survey (d) None MCQ 11.32 The difference between the expected value of a statistic and the value of the parameter being estimated is called a: (a) Sampling error (b) Non-sampling error (c) Standard error (d) Bias MCQ 11.33 The standard deviation of any sampling distribution is called: (a) Standard error (b) Non-sampling error (c) Type- I error (d) Type II-error MCQ 11.34 Which of the following statement is not true? (a) S.E( ) 0 (b) S.E( ) 1 (c) S.E( ) = -2 (d) All of the above MCQ 11.35 The standard error increases when sample size is: (a) Increase (b) Decrease (c) Fixed (d) More than 30 MCQ 11.36 The mean of sampling distribution of mean (a) (b) µ (c) p (d) None of the above MCQ 11.37 The mean of the sample means is exactly equal to the: (a) Sample mean (b) Population mean (c) Weighted mean (d) Combined mean MCQ 11.38 (a) E( ) (b) µ (c) Both (a) and (b) (d) None of the above MCQ 11.39 A sample which is free from bias is called: (a) Biased (b) Unbiased (c) Positively biased (d) Negatively biased MCQ 11.40 If E( ) = µ then bias is: (a) Positive (b) Negative (c) Zero (d) 100%
MCQ 11.41 (a) Unbiased sample variance (b) Population variance (c) Biased sample variance (d) All of the above MCQ 11.42 (a) Unbiased sample variance (b) True variance (c) Biased sample variance (d) Variance of means MCQ 11.43 The sampling procedure in which the population is first divided into homogenous groups and then a sample is drawn from each group is called: (a) Probability sampling (b) Simple random sampling (c) Stratified random sampling (d) Sampling with replacement MCQ 11.44 When a random sample is drawn from each stratum, it is known as: (a) Simple random sampling (b) Stratified random sampling (c) Probability sampling (d) Purposive sampling MCQ 11.45 When the procedure of selecting the elements from the population is not based on probability is known as: (a) Purposive sampling (b) Judgment sampling (c) Subjective sampling (d) All of the above MCQ 11.46 Suppose a finite population has 6 items and 2 items are selected at random without replacement, then all possible samples will be: (a) 6 (b) 12 (c) 15 (d) 36 MCQ 11.47 Suppose a finite population contains 7 items and 3 items are selected at random without replacement, then all possible samples will be: (a) 21 (b) 35 (c) 14 (d) 7 MCQ 11.48 A population contain N item and all possible sample of size n are selected without replacement. The possible number of sample will be: (a) N (b) n N (c) N C n (d) N n MCQ 11.49 Suppose a finite population contains 4 items and 2 items are selected at random with replacement, then all possible samples will be: (a) 6 (b) 16 (c) 8 (d) 4 MCQ 11.50 A population contains 2 items and 4 items are selected at random with replacement, then all possible samples will be: (a) 16 (b) 8 (c) 4 C 2 (d) 4 MCQ 11.51 Suppose a population has N items and n items are selected with replacement. Number of all possible samples will be: (a) N n (b) N C n (c) N (d) n MCQ 11.52 In random sampling, the probability of selecting an item from the population is: (a) Unknown (b) Known (c) Un-decided (d) One MCQ 11.53 If N is the size of the population and n is size of the sample, then sampling fraction is: (a) n N (b) N n (c) n/n (d) N C n
MCQ 11.54 The finite population correction factor is: MCQ 11.55 In sampling with replacement, the standard error of MCQ 11.56 MCQ 11.57 In sampling with replacement, the standard error of sample proportion MCQ 11.58 MCQ 11.59 If E( ) = 10 and µ = 10 then bias (a) 0 (b) 10 (c) 20 (d) Difficult to tell MCQ 11.60 If = 10 and µ = 12 then sampling error (a) 22 (b) 10 (c) 12 (d) 2 MCQ 11.61 The standard deviation of the distribution of sample means MCQ 11.62 If n = 25, = 25 and = 25, then standard error of will be: (a) 25 (b) 5 (c) 1 (d) 0 MCQ 11.63 If E(s 2 ) = 3 and = 2 then bias will be: (a) 5 (b) 3 (c) 2 (d) 1 MCQ 11.64 In sampling without replacement, the standard error of sampling distribution of sample proportion to: is equal MCQ 11.65 When sampling is done without replacement
MCQ 11.66 In case of sampling with replacement MCQ 11.67 The distribution of the mean of sample of size 4, taken from a population with a standard deviation, has a standard deviation of: MCQ 11.68 In sampling with replacement MCQ 11.69 When sampling is done with or without replacement, E( MCQ 11.70 In case of sampling with replacement, Ε (S²) MCQ 11.71 In sampling without replacement, the expected value of is S² MCQ 11.72 When the sampling is done with replacement, then µ S2 MCQ 11.73 In sampling without replacement, µ s² MCQ 11.74 When sampling is done with or without replacement, MCQ 11.75 If X represent the number of units having the specified characteristic and n is the size of the sample, then population proportion p MCQ 11.76 If X represents the number of units having the specified characteristic and N is the size of the population, then population proportion p