Question: answer all questions with explanation 9. When 328 college students are randomly selected and surveyed, it is found that 122 own a car. a. Find

answer all questions with explanation

9. When 328 college students are randomly selected and surveyed, it is found that 122 own a car. a. Find a 95% confidence interval for the true proportion of all college students who own a car. b. Find the suggested sample size for the 95% confidence interval so that the sample percentage is no more than three percentage points of the true proportion

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