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In a random survey of 226 college students, 20 reported being only children (with no siblings). Estimate the proportion of students nationwide who are only children.

a) Check the conditions (to the extent you can) for constructing a confidence interval.

b) Construct a 95% confidence interval.

c) Interpret your interval.

d) Explain what 95% confidence means in this context.

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Category:- Statistics and Probability
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