3. Local officials in a county would like to know the mean hourly wage, u, of recent college graduates. They select a random sample of 101 recent college graduates and find a sample mean hourly wage of $17.57 and a sample standard deviation of $10.84. b. Calculate the 99% confidence interval for the mean. Round each answer to two significant digits (e.g. 99.73). i. Lower bound ii. Upper bound

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