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181. while the statistical measure based upon entire population is called parameter, the measure based upon a sample in known as a. sample parameters b. inference c.statistic d. none of these above

Research Aptitude 250+ mcq Part 19

182. a researcher selects a probability sample of 100 out of the total population it is called a. a quota sample b. a simple random sample c. a stratified random sample d. a systematic sample

183.a researcher divides the school students on the basis of gender and then by using the random digit table,he selects some of them from each group this is a. stratified sampling b. stratified random sampling c. representative sampling d none of the above

184. to ensure the accuracy of the research the sample should be a. taken randomly b. fixed by quota c. representative of the population d. purposive

185. a researcher can keep the sample size low if population is a. heterogeneous b. inaccessible c. homogeneous d. all of the above

186.which technique is generally followed when the population is finite a area sampling technique b. purposive sampling technique c.systematic sampling technique d. none of these above

187.cluster sampling is used when a. population is scattered and sample size is to be kept large b. population is heterogeneous c. long survey is needed d. both a and c

188. a researcher divides his population into certain groups and fixes the size of the sample from each group it is called a. stratified sample b. quota sample c. cluster sample d. all of the above