Kizspy | Question: 36
(Choose 1 answer)
An economist is interested in studying the incomes of consumers in a particular region. The population standard deviation is known to be $1,500$. A random sample of 50 individuals resulted in an average income of $25,000. What is the width of the 95% confidence interval?
Α. 415.78
Β. 700.04
C. 350.02
D. 831.56
E. None of the other choices is correct
Let Z0.025 1.96,Zo.051.65,t0.025:49 = 2.01;t0.05:49 = 1.68
