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OpenStax, Statistics §8.3 A Population Proportion · Exercise 38 · Statistics · Confidence intervals

A Population Proportion · Exercise 38

Refer to the information in.

(a) Construct three 95 percent confidence intervals:
(a) percentage of all ethnicity C who would welcome a person of ethnicity D into their families
(b) percentage of all ethnicity C who would welcome a person of ethnicity A into their families
(c) percentage of all ethnicity C who would welcome a person of ethnicity B into their families
(b) Even though the three point estimates are different, do any of the confidence intervals overlap? Which?
(c) For any intervals that do overlap, in words, what does this imply about the significance of the differences in the true proportions?
(d) For any intervals that do not overlap, in words, what does this imply about the significance of the differences in the true proportions?

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OpenStax, Statistics · §8.3 A Population Proportion · Exercise 38

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