A recent survey of 200 companies showed that 8 had a female as the head of...

A recent survey of 200 companies showed that 8 had a female as the head of the company. A year ago, a survey of 200 companies showed that 6 had a female as the head of the company. At α = 0.05, can it be concluded that the proportion has changed? Find the 95% confidence interval of the difference of the two proportions.

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orchestra answered 1 year ago

A recent survey of 200 households in the United States showed that 8 had a single...

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