Question

a. A sample of 300 observations taken from a population produced a sample proportion of .63. Make a 95% confidence interval for p.
b. Another sample of 300 observations taken from the same population produced a sample proportion of .59. Make a 95% confidence interval for p.
c. A third sample of 300 observations taken from the same population produced a sample proportion of .67. Make a 95% confidence interval for p.
d. The true population proportion for this population is .65. Which of the confidence intervals constructed in parts a through c cover this population proportion and which do not?


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  • CreatedAugust 25, 2015
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