15 Matching Annotations
- Feb 2024
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stats.libretexts.org stats.libretexts.org
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hat is meant by the term “90% confident” when constructing a confidence interval for a mean?
We are 90% certain that the sample will fall within the confidence interval
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________
100
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________
7
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23.6
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Calculate the error bound.
0.27
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Sketch the graph.
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State the confidence interval.
3.67 < x < 4.21
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Explain your choice.
Normal distribution because the sd, sample mean, and sample size is given
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What will happen to the error bound obtained if 1,000 male Swedes are surveyed instead of 48? Why?
Error bound will become lesser because the higher the sample size the lower the error bound is.
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Calculate the error bound.
0.792
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Sketch the graph.
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State the confidence interval.
70.208< x < 71.792
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48
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71
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2.8
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