The unlon for a particular Industry has determthed that the standard deviation of the daily wages of its workers is $22. A random sample of 60 workers in this Industry has a mean daily wage of $123. Find a 90% confidence interval for the true mean dally wage of all union workers in the industry. Then glve its lower limit and upper limit. Carry your Intermediate computations to at least three decimal places. Round your answers to one decimal place. (If necessary, consult a list of formulas.) Lower limit: Upper limit:

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O CONFIDENCE INTERVALS AND HYPOTHESIS TESTING
Confidence interval for the population mean: Use of the standar.
The unlon for a particular industry has determlhed that the standard deviation of the daily wages of its workers is $22. A random sample of 60 workers in this
Industry has a mean dally wage of $123. Flind a 90% confidence interval for the true mean daily wage of all union workers in the Industry. Then give its lower
limit and upper limit.
Carry your Intermediate computations to at least three decimal places. Round your answers to one decimal place. (If necessary, consult a list of formulas.)
Lower limit:
Upper limit: 1
Explanation
Check
2021 McGraw-Hill Education. All Rights Reserved
e
y
f
h
360
Transcribed Image Text:O CONFIDENCE INTERVALS AND HYPOTHESIS TESTING Confidence interval for the population mean: Use of the standar. The unlon for a particular industry has determlhed that the standard deviation of the daily wages of its workers is $22. A random sample of 60 workers in this Industry has a mean dally wage of $123. Flind a 90% confidence interval for the true mean daily wage of all union workers in the Industry. Then give its lower limit and upper limit. Carry your Intermediate computations to at least three decimal places. Round your answers to one decimal place. (If necessary, consult a list of formulas.) Lower limit: Upper limit: 1 Explanation Check 2021 McGraw-Hill Education. All Rights Reserved e y f h 360
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