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Stratified Sampling: If the population from which a sample is to be drawn does not constitute a homogenous group, then stratified sampling technique is applied so as to obtain a representative sample. In this techniques the population is stratified into a number of non overlapping subpopulations or strata and sample items are selected from each stratum. If the items selected from each stratum is based on simple random sampling the entire procedure first stratification and the simple random sampling is known as stratified random sampling.
uses of time series with example
Q. Example of inference? Ans. Thirty students from a college were surveyed and classified according to two variables: (1) gender (M/F) and (2) major (liberal arts, busines
a ball is projected so as to attain a maximum range. Find the maximum height attained if initial velocity is u
When are expenses credited? While common journal cost records are typically debited and have debit account balances, there are times when the cost records are acknowledged.
Advantages of sampling over population
i have a scaled data on multiple questions from two different tests taken at different times for the same respondents, and now i want to calculate the reliability test manually but
A retail store has recently hired you as a consultant to advise on economic conditions. One important indicator that the retail store is concerned about is the unemployment rate.
What is public finance
1. Penny Pincher, Inc. had a contribution margin of $33,000 on sales of $50,000 and had fixed costs of $18,000. Calculate its break-even point in sales dollars. 2. Krueger Company
The U.S. Department of Transportation reported that during November, 83.4% of Southwest Airlines’ flights, 75.1% of US Airways’ flights, and 70.1% of JetBlue’s flights arrived on t
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