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Questions and Answers
What is the formula used to calculate the sample size of a class size?
What is the formula used to calculate the sample size of a class size?
- n = N / (1 + (e^2) / N) (correct)
- n = N * (1 - (e^2) / N)
- n = N / (1 + N(e^2))
- n = N - (e^2) / N
What is the value of 'e' in the sample size formula if the desired margin of error is 5% and the confidence level is 95%?
What is the value of 'e' in the sample size formula if the desired margin of error is 5% and the confidence level is 95%?
- 0.5
- 1.96
- 0.025 (correct)
- 0.05
If the class size is 96, what is the approximate sample size at a 95% confidence level and a 5% margin of error?
If the class size is 96, what is the approximate sample size at a 95% confidence level and a 5% margin of error?
- 85
- 67
- 76
- 81 (correct)
What is the purpose of calculating the sample size?
What is the purpose of calculating the sample size?
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What assumption is made when calculating the sample size?
What assumption is made when calculating the sample size?
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