gender
M
M
F
F
M
M
M
F
F
M
M
M
F
M
F
M
F
M
M
M
salary
27,825
26,000
31,800
24,000
54,000
29,500
44,138
29,906
40,000
81,999
42,300
58,015
27,925
20,395
41,998
47,180
112,021
85,000
31,018
26,105
salary_g
low: < or = 35K
low: < or = 35K
low: < or = 35K
low
car
Accura Integra Type R
Accura NSX-T
BMW Z3 2.8
Chevrolet Camaro Z28
Chevrolet Corvette Conve
Dodge Viper RT/10
Ford Mustang GT
Honda Prelude Type SH
Mercedes-Benz CLK320
Mercedes-Benz SLK230
Mitsubishi 3000GT VR-4
Nissan 240SX SE
Pontiac Firebird Trans
Salary
27,825
Hypothesis Test About a Population Mean,
When is Known and n is Large
26,000
31,800
24,000
54,000
Sample Size
Sample Mean
Population Std. Deviation
35
50,520
20000
Hypothesized Value
55000
Standard Error
Test Statistic z
3380.62
-1.33
p-val
Hypothesis Testing:
In 2000, the population mean earnings per share for all financial corporations in the U.S. was $3. In 2001,
a sample of 10 financial services corporations proved the following earnings per share:
A. Formulate the null and alternative h