6) 6) When 495 junior college students were surveyed, 145 said they have a passport. Construct a 95% confidence interval
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6) 6) When 495 junior college students were surveyed, 145 said they have a passport. Construct a 95% confidence interval
6) 6) When 495 junior college students were surveyed, 145 said they have a passport. Construct a 95% confidence interval for the proportion of junior college students that have a passport. Round to the nearest thousandth. Take z CV as 2. ULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 7) 7) Construct a 95% confidence interval for the population mean, u. Assume the population has a normal distribution. A sample of 25 randomly English majors has a mean test score of 81.5 with a standard deviation of 10.2. Round to the nearest hundredth. Take the t CV as 2.06. A) (87.12, 98.32) B) (77.29, 85.71) C) (66.35, 69.89) D) (56.12, 78.34)
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