# statistics

posted by
**Anonymous**
.

A random sample of 51 of the largest companies in the united states gave the following P/e ratios

11 35 19 13 15 21 40 18 60 72 9 20

29 53 16 26 21 14 21 27 10 12 47 14

33 14 18 17 20 19 13 25 23 27 5 16

8 49 44 20 27 8 19 12 31 67 51 26

19 18 32

Use a calculator with mean and sample standard deviation keys to verify that xbar = 25.2 and s=15.5

find a 99 % confidence interval for the P/E population mean of all large companies

Bank One merged with JP morgan had a P/E of 12, AT7t had a P/E of 72 Disney had a P/E of 24 Examine the confidence intervals in b and c how would you describe the stocks at the time the sample was taken