SOLVED

41)In simple random sampling, every member of the identified population A)has an equal chance of being selected. B)has an unequal probability of being selected. C)has a simple relationship to the population. D)is willing to participate in the research. 42)The initial list (such as all children in a school district) from which we draw a sample is termed A)the sample size. B)sampling error. C)a stratum. D)a sample frame. 43)What is a sampling frame? A)A method used to sample a population. B)A method used to stratify a population for sampling. C)A list of all the members in a population. D)The series of decisions necessary to create a sample. 44)Stratified random sampling procedures are used when we wish to A)represent accurately subgroups of a population in the sample. B)study geological events. C)employ a larger sample. D)take a random sample from the entire population. 45)What is a major problem with simple random sampling? A)The researcher needs a list of all the members of a population, which is difficult to obtain for a large population. B)The researcher needs to contact all the people in the population, which would be difficult for a large population. C)The sample usually over-represents certain segments of the population. D)There is a systematic bias that leads to persons with certain characteristics having a higher probability of being selected. 46)Stratified random sampling procedures are used when A)certain subgroups are more prevalent in some samples than others. B)it is important to ensure that subgroups within a population are adequately represented in the sample. C)the population being sampled is homogeneous. D)it is important to ensure that certain subgroups of a population are not included in the sample. 47)If you want to get a representative sample for a survey, you should use a A)probability sample. B)nonprobability sample. C)nonprobability sample from stratified groups. D)None of the above. 48)The advantage of a stratified random sample over a random sample is that A)stratified random samples require less work than random samples. B)stratified random samples are more likely to represent accurately a population, because stratification on key variables virtually assures accurate representation on those variables. C)the random sample is not a probability sample. D)stratified random samples provide both a probability and a nonprobability sample in one procedure. 49)The size of the sample needed depends on the ________ of the population. A)attitudes B)homogeneity C)mean D)demand characteristics 50)In general, if the population is ________, then ________ sample sizes are possible. A)small; larger B)heterogeneous; smaller C)homogeneous; smaller D)homogeneous; larger Â