Use the data in the table below to answer the next three questions. The table below shows closing share prices for a small sample of companies

Use the data in the table below to answer the next three questions. The table below shows closing share prices for a small sample of companies

Use the data in the table below to answer the next three questions.
The table below shows closing share prices for a small sample of companies.

COMPANY CLOSING SHARE PRICE – 08/07
3M Dental Products 86.95
Tyco Electronics Power Systems 47.45
Kyocera America Inc. 94.10
Pfizer Inc. 22.39
Xerox Company 17.56
Northrop Grumman Corporation 75.81
Lockheed Martin Maritime Systems 100.17
Sony DADC 51.91
Matsushita Electronic Components 17.91
Foster Wheeler Environmental Corp. 55.67
1. The mean closing share price is
A. $29.82
B. $31.43
C. $56.99
D. $62.19
E. None of the above

2. The standard deviation in closing share prices is
A. $31.43
B. $29.82
C. $56.99
D. $62.19
E. None of the above

3. The z score for the share price for Matsushita Electronic Components is
A.1.24
B.2.34
C.-2.34
D.-3.00
E.-1.24

4. Which of the following is (are) based on cross sectional data?
A. Company quarterly profits.
B. Percentage of American adults who work full time.
C. Historical closing stock prices.
D. All of the above.
E. None of the above.

1. During 2011, Trish, a self-employed healthcare consultant, travels from Los Angeles to Atlanta for a 1 week business trip. While in Atlanta, Trish decides to stay for an additional 5 days of vacation. She pays $750 for airfare, $220 for meals, $150 for entertaining clients, and $600 for lodging while on business. The costs of meals and lodging while on vacation were $250 and $500, respectively. How much may Trish deduct as travel expenses for the trip?
A) $1,570
B) $970
C) $1,460
D) None of these

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