The humane society selected a random sample of households in its county and used the sample to estimate the proportion of all households that own at least one dog. The conditions for calculating a 95 percent confidence interval for the proportion of households in this county that own at least one dog were checked and verified, and the resulting confidence interval was 0.451 ± 0.091. • Construct and interpret the 95 percent confidence level in this context. • How many households were selected in the humane society's sample? Show how you obtained your answer.
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First, we know that the 95% confidence interval for the proportion of households that own at least one dog is 0.451 ± 0.091. This means that we are 95% confident that the true proportion of households that own at least one dog in the county is between 0.451 - Show more…
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