Mathematics, 30.01.2021 21:40 mktdonaldson
Suppose the ages at retirement for workers in the U. S. are normally distributed with an unknown population mean and standard deviation. If a random sample of 43 retirees is taken to estimate the mean retirement age, what t-score should be used to find a 80% confidence interval estimate for the population mean? Use the portion of the table above or a calculator. If you use a calculator, round your answer to three decimal places.
Answers: 3
Mathematics, 21.06.2019 21:30
In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.
Answers: 2
Mathematics, 21.06.2019 22:30
What fraction is equivalent to 0.46464646··· a. 46⁄999 b. 46⁄100 c. 46⁄99 d. 23⁄50
Answers: 1
Suppose the ages at retirement for workers in the U. S. are normally distributed with an unknown pop...
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