A professor is interested in the average length of books in her library. She has divided...
A professor is interested in the average length of books in her library. She has divided her books into a few different categories: 235 books on mathematics, 290 books on sports, and 166 books on interior design. Rather than examining all the books, she plans to use a stratified sample of 50 books. How many of the sports books should she choose? Enter a whole number.
Homework Answers
Total number of books = 235 + 290 + 166 = 691
Proportion of sample to the population = 50/691
The proportion shall be maintained in all strata of the sample. So, the number of samples to be taken from sports books
= Number of sports books x 50/691
= 290 x 50/691
= 21
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quantitative study
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phenomenology
12. Select the participants in the Beck & Watson study
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13. In the Beck & Watson study, data was collected via
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saturation
triangulation
ethnography
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