Question

1. + 2se ()
2. ŷ ± se (p̂)
3. 2se (X-bar)
4. N (μ, σ2 / n)
5. s / √n
6. σ / √n
7. 1 / (0.05)2
8. [0,1]
9. √ p̂ (1 – p̂) / n
10. t0.025 n–1
(a) Sampling distribution of X–bar
(b) Margin of error
(c) 100% confidence interval for p
(d) Estimated standard error of Y-bar
(e) Estimated standard error of p̂
(f) An interval with about 95% coverage
(g) Actual standard error of Y-bar
(h) About 2 for moderate sample sizes
(i) An interval with 68% coverage
(j) Sample size needed for 0.05 margin of error


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  • CreatedJuly 14, 2015
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