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3. Suppose you wish to estimate the proportion of cars that are white. Find the sample size needed to assure with 92% confidence that the

3. Suppose you wish to estimate the proportion of cars that are white. Find the sample size needed to assure with 92% confidence that the sample proportion will not differ from the population proportion by more than 6%. (8pts) 4. A study of 35 python snakes found the average length was 24.2 ft. Find the margin of error needed to estimate the average length of all python snakes with 95% confidence. Assume o is known to be 2.9 ft. (8pts)

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