OpenStax, Statistics §8.3 A Population Proportion · Try It 3 · Statistics · Confidence intervals
A Population Proportion · Try It 3
b. In a sample of 300 students, 68 percent said they own an iPod and a smartphone. Compute a 97 percent confidence interval for the true percentage of students who own an iPod and a smartphone.
OpenStax, Statistics · §8.3 A Population Proportion · Try It 3
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