Question
Data were collected from CEOs in the consumer products industry and the CEOs in the telecommunication industry. The data were analyzed using a software package
Data were collected from CEOs in the consumer products industry and the CEOs in the
telecommunication industry. The data were analyzed using a software package in order to compare
mean salaries of CEOs in the two industries.
HYPOTHESIS: MEAN X = MEAN Y
SAMPLES SELECTED FROM SALARY
X = Consumer Products
Y = Telecommunications
SAMPLE MEAN OF X = 1761
SAMPLE VARIANCE OF X = 3.97555E6
SAMPLE SIZE OF X = 21
SAMPLE MEAN OF Y = 1093.5
SAMPLE VARIANCE OF Y = 103255
SAMPLE SIZE OF Y = 21
MEAN X - MEAN Y = 667.5
test statistic = 1.47809
D. F. = 40
P-VALUE = 0.147626
P-VALUE/2 = 0.0738131
SD. ERROR = 451.597
Using = .05, give the rejection region for a two-tailed test.
A) Reject H0 if t > 2.021.
B) Reject H0 if t > 1.684.
C) Reject H0 if t > 1.684 or t < -1.684.
D) Reject H0 if t > 2.021 or t < -2.021.
How do I answer this problem?
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