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statistics A survey of 35 adults found that the mean age of a person's primary vehicle is 5.6 years. Assuming the standard deviation of the

statistics

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A survey of 35 adults found that the mean age of a person's primary vehicle is 5.6 years. Assuming the standard deviation of the population is 0.8 year, find the 95% confidence interval of the population mean.Question 12 1 pts A High School is organizing a rafe. The main prize is a $2000 laptop. Other prizes are 2 tablets worth $900 each, and one $500 gift card. 2000 tickets are sold at $20 each. What is the expected value of purchasing one ticket

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