Answer (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?
Let Z0.025 1.96,Z0.051.65,to.025:49 = 2.01;t0.05:49 = 1.68
Α. 831.56
B. None of the other choices is correct
C. 415.78
D. 700.04
Ε. 350.02
2: 48
