sample test

A manufacturing unit produces 2000 electric bulbs every month. Samples of the bulbs are to be tested for any manufacturing defects. What is the best sampling methodology for testing? => cluster sampling or random sampling or systematic ..

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, unbiased..

Factual Passage - Sample - Read the following passage carefull..

Random Experiment and Sample Space - An experiment repeated under essentially homogeneous and similar conditions results in an outcome, which is unique or not unique but may be one of the several possible outcomes. When the result is unique then the experiment is called a 'deterministic' ..

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..

Read the following passage carefully..

Good peer pressure, on the other hand, is being pushed into something that is good for you. You may be didnt have the courage to do or it just didnt cross your mind but acting that way has proved beneficia..

Western countries do have desirable elements worth copying. But are we taking in those positive elements? No, we seem to be merely diving into the external glitter of the Wes..

Read the following passage carefully..

Before we perform the t test in order to test the difference between two means (independent samples) we need to perform _____ test to check the difference between ______. => F test, means or F test, variances or z test, means or ..