MCQ SAMPLING AND SAMPLING DISTRIBUTIONS MCQ 11.1

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MCQ SAMPLING AND SAMPLING DISTRIBUTIONSMCQ 11.1Sample is a sub-set of:(a) Population(b) Data(c) SetMCQ 11.2Any population constant is called a:(a) Statistic(b) Parameter(d) Distribution(c) Estimate(d) EstimatorMCQ 11.3List of all the units of the population is called:(a) Random sampling(b) Bias(c) Sampling frameMCQ 11.4Any calculation on the sampling data is called:(a) Parameter(b) Static(c)MCQ 11.5Any measure of the population is called:(a) Finite(b) Parameter(d) Probability sampling(d) Error(c) Without replacementMCQ 11.6If all the units of a population are surveyed, it is called:(a) Random sample (b) Random sampling (c) Sampled population(d) Random(d) Complete enumerationMCQ 11.7Probability distribution of a statistics is called:(a) Sampling(b) Parameter(c) Data(d) Sampling distributionMCQ 11.8The difference between a statistic and the parameter is called:(a) Probability(b) Sampling error (c) Random(d) Non-randomMCQ 11.9The sum of the frequencies of the frequency distribution of a statistic is equal to:(a) Sample size(b) Population size (c) Possible samples(d) Sum of X valuesMCQ 11.10Standard deviation of sampling distribution of a statistic is called:(a) Serious error(b) Dispersion(c) Standard error(d) DifferenceMCQ 11.11If we obtain a point estimate for a population mean µ, the difference between(a) Standard error(b) Bias(c) Error of estimationand µ is:(d) Difficult to tellMCQ 11.12A distribution formed by all possible values of a statistics is called(a) Binomial distribution(b) Hypergeometric distribution(c) Normal distribution(d) Sampling distributionMCQ 11.13In 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 11.14A population about which we want to get some information is called:(a) Finite population(b) Infinite population(c) Sampling populationMCQ 11.15The population consists of the results of repeated trials is named as:(a) Finite population (b) Infinite population(c) Real population(d) Target population(d) Hypothetical populationMCQ 11.16A population consisting of the items which are all present physically is called:(a) Finite population(b) Infinite population(c) Real population (d) Hypothetical populationMCQ 11.17Study of population is called:(a) Parameter(b) Statistic(c) Error(d) CensusMCQ 11.18For making voters list in Pakistan we need:(a) Sampling error(b) Standard error(c) Census(d) Simple random samplingMCQ 11.19Sampling based upon equal probability is called:(a) Probability sampling(c) Simple random sampling(b) Systematic sampling(d) Stratified random samplingMCQ 11.20In sampling with replacement, an element can be chosen:(a) Less than once(b) More than once(c) Only once(d) Difficult to tellMCQ 11.21Standard deviation of sample mean without replacement standard deviation of sample meanwith replacement:(a) Less than(b) More than(c) 2 times(d) Equal toMCQ 11.22In sampling without replacement, an element can be chosen:(a) Less than once(b) More than once(c) Only onceMCQ 11.23In sampling with replacement, the following is always true:(a) n N(b) n N(c) n NMCQ 11.24Which of the following statement is true?(a) Standard error is always one(c) Standard error is always negative(d) Difficult to tell(d) All of the above(b) Standard error is always zero(d) Standard error is always positiveMCQ 11.25Random sampling is also called:(a) Probability sampling(b) Non-probability samplingMCQ 11.26Non-random sampling is also called:(a) Biased sampling (b) Non-probability sampling(c) Sampling error(c) Random sampling(d) Random error(d) Representative sample

MCQ 11.27Sampling error can be reducing by:(a) Non-probability sampling(c) Decreasing the sample size(b) Increasing the population(d) Increasing the sample sizeMCQ 11.28The selection of cricket team for the world cup is called:(a) Random sampling(b) Systematic sampling (c) Purposive samplingMCQ 11.29A complete list of all the sapling units is called:(a) Sampling design(b) Sampling frame(c) Population frame(d) Cluster sampling(d) ClusterMCQ 11.30A Plan for obtaining a sample from a population is called:(a) Population design(b) Sampling design(c) Sampling frame(d) Sampling distributionMCQ 11.31If a survey is conducted by a sampling design is called:(a) Sample survey (b) Population survey(c) Systematic survey(d) NoneMCQ 11.32The difference between the expected value of a statistic and the value of the parameter being estimated iscalled a:(a) Sampling error (b) Non-sampling error(c) Standard error(d) BiasMCQ 11.33The standard deviation of any sampling distribution is called:(a) Standard error(b) Non-sampling error(c) Type- I error(d) Type II-errorMCQ 11.34Which of the following statement is not true?(a) S.E( ) 0(b) S.E( ) 1(c) S.E( ) -2(d) All of the aboveMCQ 11.35The standard error increases when sample size is:(a) Increase(b) Decrease(c) Fixed(d) More than 30MCQ 11.36The mean of sampling distribution of mean is equal to:(a)(b) µ(c) p(d) None of the aboveMCQ 11.37The mean of the sample means is exactly equal to the:(a) Sample mean(b) Population mean(c) Weighted mean(d) Combined meanMCQ 11.38(a) E( )(b) µ(c) Both (a) and (b)MCQ 11.39A sample which is free from bias is called:(a) Biased(b) Unbiased(c) Positively biasedMCQ 11.40If E( ) µ then bias is:(a) Positive(b) Negative(c) Zero(d) None of the above(d) Negatively biased(d) 100%

MCQ 11.41(a) Unbiased sample varianceMCQ 11.42(b) Population variance (c) Biased sample variance (d) All of the above(a) Unbiased sample variance (b) True variance(c) Biased sample variance(d) Variance of meansMCQ 11.43The sampling procedure in which the population is first divided into homogenous groups and then a sampleis drawn from each group is called:(a) Probability sampling(b) Simple random sampling(c) Stratified random sampling(d) Sampling with replacementMCQ 11.44When 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 samplingMCQ 11.45When 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 aboveMCQ 11.46Suppose 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) 36MCQ 11.47Suppose a finite population contains 7 items and 3 items are selected at random without replacement, thenall possible samples will be:(a) 21(b) 35(c) 14(d) 7MCQ 11.48A population contain N item and all possible sample of size n are selected without replacement. Thepossible number of sample will be:(a) N(b) nN(c) NCn(d) NnMCQ 11.49Suppose a finite population contains 4 items and 2 items are selected at random with replacement, then allpossible samples will be:(a) 6(b) 16(c) 8(d) 4MCQ 11.50A population contains 2 items and 4 items are selected at random with replacement, then all possiblesamples will be:(a) 16(b) 8(c) 4C2(d) 4MCQ 11.51Suppose a population has N items and n items are selected with replacement. Number of all possiblesamples will be:(a) Nn(b) NCn(c) N(d) nMCQ 11.52In random sampling, the probability of selecting an item from the population is:(a) Unknown(b) Known(c) Un-decided(d) OneMCQ 11.53If N is the size of the population and n is size of the sample, then sampling fraction is:(a) nN(b) Nn(c) n/N(d) NCn

MCQ 11.54The finite population correction factor is:MCQ 11.55In sampling with replacement, the standard error ofis equal to:MCQ 11.56MCQ 11.57In sampling with replacement, the standard error of sample proportionis equal to:MCQ 11.58MCQ 11.59If E( ) 10 and µ 10 then bias is equal to:(a) 0(b) 10(c) 20(d) Difficult to tellMCQ 11.60If 10 and µ 12 then sampling error is equal to:(a) 22(b) 10(c) 12(d) 2MCQ 11.61The standard deviation of the distribution of sample means is equal to:MCQ 11.62If n 25, 25 and 25, then standard error of will be:(a) 25(b) 5(c) 1(d) 0MCQ 11.63If E(s2) 3 and 2 then bias will be:(a) 5(b) 3(c) 2(d) 1MCQ 11.64In sampling without replacement, the standard error of sampling distribution of sample proportionto:MCQ 11.65When sampling is done without replacementis equal to:is equal

MCQ 11.66In case of sampling with replacementis equal to:MCQ 11.67The distribution of the mean of sample of size 4, taken from a population with a standard deviation, has astandard deviation of:MCQ 11.68In sampling with replacementis equal to:MCQ 11.69When sampling is done with or without replacement, E(is equal to:MCQ 11.70In case of sampling with replacement, Ε (S²) is equal to:MCQ 11.71In sampling without replacement, the expected value of is S² is equal to:MCQ 11.72When the sampling is done with replacement, then µS2 is equal to:MCQ 11.73In sampling without replacement, µs² is equal to:MCQ 11.74When sampling is done with or without replacement,is equal to:MCQ 11.75If X represent the number of units having the specified characteristic and n is the size of the sample, thenpopulation proportion p is equal to:MCQ 11.76If X represents the number of units having the specified characteristic and N is the size of the population,then population proportion p is equal to:

MCQ 11.74 When sampling is done with or without replacement, is equal to: MCQ 11.75 If X represent the number of units having the specified characteristic and n is the size of the sample, then popula

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