How profitable are different sectors of the stock market One

Last updated: 2/8/2024

How profitable are different sectors of the stock market One way to answer such a question is to examine profit as a percentage of stockholder equity A random sample of 30 retail stocks was studied for x1 profit as a percentage of stockholder equity The result was x1 13 8 A random sample of 36 utility gas and electric stocks was studied for x2 profit as a percentage of stockholder equity The result was x2 10 6 Assume that 1 4 4 and 2 3 1 Let u1 represent the population mean profit as a percentage of stockholder equity for retail stocks and let 2 represent the population mean profit as a percentage of stockholder equity for utility stocks Find a 95 confidence interval for u1 u2 in Enter your answer in the form lower limit to upper limit Include the word to Round your numerical values to one decimal place