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Wages of workers Without a High School Diploma. SmartAsset reports that the average weekly earnings for workers who have not received a high school diploma are $493 in 2018. Suppose you would like to determine if the average weekly earnings for workers who have received a high school diploma is significantly greater than the average Supplementary Exercises 465 weekly earnings for workers who have not received a high school diploma. Data providing the weekly pay for a sample of 50 workers who have received a high school diploma are available in the file WeeklyHSGradPay. These data are consistent with the findings reported by SmartAsset.   State the hypotheses that should be used to test whether the mean weekly pay for workers who have received a high school diploma is significantly greater than the mean weekly pay for workers who have not received a high school diploma. Use the data in the file WeeklyHSGradPay to compute the sample mean, the test statistic, and the p-value.

Wages of workers Without a High School Diploma. SmartAsset reports that the average weekly earnings for workers who have not received a high school diploma are $493 in 2018. Suppose you would like to determine if the average weekly earnings for workers who have received a high school diploma is significantly greater than the average Supplementary Exercises 465 weekly earnings for workers who have not received a high school diploma. Data providing the weekly pay for a sample of 50 workers who have received a high school diploma are available in the file WeeklyHSGradPay. These data are consistent with the findings reported by SmartAsset.   State the hypotheses that should be used to test whether the mean weekly pay for workers who have received a high school diploma is significantly greater than the mean weekly pay for workers who have not received a high school diploma. Use the data in the file WeeklyHSGradPay to compute the sample mean, the test statistic, and the p-value.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Wages of workers Without a High School Diploma. SmartAsset reports that the average weekly earnings for workers who have not received a high school diploma are $493 in 2018. Suppose you would like to determine if the average weekly earnings for workers who have received a high school diploma is significantly greater than the average Supplementary Exercises 465 weekly earnings for workers who have not received a high school diploma. Data providing the weekly pay for a sample of 50 workers who have received a high school diploma are available in the file WeeklyHSGradPay. These data are consistent with the findings reported by SmartAsset.

 

  1. State the hypotheses that should be used to test whether the mean weekly pay for workers who have received a high school diploma is significantly greater than the mean weekly pay for workers who have not received a high school diploma.
  2. Use the data in the file WeeklyHSGradPay to compute the sample mean, the test statistic, and the p-value.
  3. Use a = .05. What is your conclusion? Is this result surprising? Why did these data likely lead to this conclusion?
  4. Repeat the hypothesis test using the critical value approach.
  5. e) Calculate the probability of a type II error when the mean weekly pay for workers who have received a high school diploma is $900.
Weekly Earnings
687.73
543.15
789.45
442.26
684.85
661.43
478.30
629.62
486.95
786.47
652.15
652.82
669.81
641.13
577.24
845.68
541.59
553.36
743.25
468.61
821.71
757.82
657.34
506.95
744.93
553.20
827.92
663.85
685.90
637.25
530.54
515.85
588.77
506.62
720.84
503.01
583.18
7980.24
465.55
593.12
605.33
701.56
491.86
763.40
711.19
631.73
605.89
828.37
477.81
703.06
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