The mean income per person in the United States is $60,000, and the distribution of incomes follows
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The mean income per person in the United States is $60,000, and the distribution of incomes follows a normal distribution. A random sample of 10 residents of Wilmington, Delaware, had a mean of $70,000 with a standard deviation of $10,000. At the .05 level of significance, is that enough evidence to conclude that residents of Wilmington, Delaware, have more income than the national average?
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Vaibhav Rao Jadhav
Hiii ! I am Vaibhav Rao Jadhav. I am from Dhamtari, Chhattisgarh. I have passed my high school exam with 91.5% in 2013 and higher school exam with 87.4% in science stream with mathematics , physics and chemistry subjects in 2015 . Then I completed my graduation in Bachelor of Science in Mathematics with 70.67%. And currently I am studying Masters of science in physics. My post graduation would be completed till now but due to COVID-19 pandemic my final semester exams are postponed. Since my college days i am teaching at a private institute. I have been teaching for past threes years in those three years, first year I taught school level mathematics and physics and from last two years i am teaching college level mathematics and physics. So I have work experience of three years.
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Related Book For
Statistical Techniques In Business And Economics
ISBN: 9781260239478
18th Edition
Authors: Douglas Lind, William Marchal, Samuel Wathen
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