**Question 1 **

Share prices for a sample of 50 randomly selected U.S. stocks are recorded on April
1, 2001 and then one year later. A statistical test is applied to these data.
Fill in the blanks in the output below.

N Mean StDev SE Mean apr2001 50 57.20 27.00 ???? apr2002 50 54.00 25.45 ???? Difference 50 ???? 9.81 ???? 95% CI for mean difference: (????, ????) T-Test of mean difference = 0 (vs not = 0): T-Value = ???? P-Value = ????

dhunter@stat.psu.edu