68 718
Assignments Done
100%
Successfully Done
In January 2019

# Answer to Question #36483 in Statistics and Probability for annie

Question #36483
Consider the example where the average net income for all sole proprietor CPA’s was found to be $74,914 in a survey done five years ago. A new survey is conducted by taking a random sample of 112 currently, practising sole proprietor CPAs to determine if this average net income figure has changed. The sample average net income is calculated to be$78,695, and it is known that the population standard deviation of net incomes for sole proprietor CPA’s is \$14,530. Use the sample data to establish if there is sufficient evidence to conclude that the average net income for sole proprietor CPA’s has changed in the last 5 years.

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!