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A reliable revenue stream for cities is parking meters. A random sample of 81 parking meters yielded a sample mean of $120 with a sample standard deviation of $36. We want to find a 95% confidence interval for the population mean.

Find the appropriate t-value to use: tc= ?

Find the point estimate for the mean?

Find the margin of error ?

what are the lower and upper bounds of the confidence interval?

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9116818

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