STATISTICAL TECHNIQUES AND TOOLS
CONCEPT OF POINT AND INTERVAL ESTIMATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Given the interval (1.2, 1.8), what is the point estimate and the margin of error?
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1.5, 0.6
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1.5, 0.3
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1.2, 0.3
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1.2, 0.6
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Explanation:
Detailed explanation-1: -For a margin of error of 5% and confidence level 95% you will need 356 respondents in total (see also our sample size calculator, spread proportionally across the schools. This is when you want to draw conclusions for your population in general.
Detailed explanation-2: -A sample is considered large when n ≥ 30. As mentioned earlier, the number E=z∕2∕√n or E=z∕2s∕√n is called the margin of error of the estimate.
There is 1 question to complete.