difference between stratified sampling and cluster sampling

What are the different types of sampling? => Direct sampling, indirect sampling, random sampling and systematic sampling. or Telephone survey, mail questionnaire, personal interview and direct observations. or Systematic sampling..

Overview of methods of data collection: Census Sample survey Experiment Observational study Planning and conducting surveys: Characteristics of a well-designed and well-conducted survey Populations, samples, and random selection Sources of bias in s..

What sampling method was used by a researcher who divided subjects into two groups according to gender and then selected members from each group for her sample? => cluster or stratified or random or systematic..

Select the incorrect statement(s). I. A sampling distribution of sample means is a distribution obtained by using the means computed from random samples of a specific size taken from a population. II. Sampling error is the difference between the ..

Every fourth passenger boarding the aircraft was requested to fill up a small questionnaire to find out the customer satisfaction. The data collection methodology is _______ sampling. => stratified or systematic or random or cluster..

A survey was conducted among the patients of two hospitals in the city to assess the general facilities in health care. What type of sampling is used? => cluster or stratified or systematic or random..

What sampling method is used to determine the nature of the visit of subjects to a local mall in a city? => cluster or systematic or convenience or stratified..

Find the F-test value for testing the difference between two population variances. The data shows the two samples from each of the populations. => 1.11 or 0.63 or 2.38 or 2.16..

A population consists of the five numbers 2, 4, 6, 8 and 10. Consider all the samples of size 2 that can be drawn with replacement from the population. Find the mean of the sampling distribution means. Also find the difference between the population mean and mean of th..

What sampling technique is used by a committee of 100 students to assess any reaction to the introduction of a Pastoral Care into the school time table? => stratified or random or cluster or systematic..