The financial industry Earnings per share last year were $3. This year, earnings per share in 10 financial companies were as follows. Test the hypothesis that this year's earnings differ from last year, two-tail, at alpha (significance level) =.10.
Data 1.92, 2.16, 3.63, 3.16, 4.10, 3.14, 2.20, 2.34, 3.10, 2.38
a. Critical Value
b. What is the appropriate T or Z
c. Statistical conclusion
d. Practical conclusion