Homework Answers
Answer:
Given,
Point estimate = p^ = 0.28
Here at 95% CI, z value is 1.96
95% CI = p^ +/- z*sqrt(p^(1-p^)/n)
substitute values
= 0.28 +/- 1.96*sqrt(0.28(1-0.28)/100)
= 0.28 +/- 0.088
= (0.192 , 0.368)
Upper bound = 0.368
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