At a local store, 65 female employees were randomly selected and
it was found that their mean monthly income was $625 with a
standard deviation of $121.50. Seventy-five male employees were
also randomly selected and their mean monthly income was found to
be $667 with a standard deviation of $168.70. Test the hypothesis
that male employees have a higher monthly income than female
employees. Use α = 0.01. Use any method, however, follow the
PHANTOMS acronym.
P - Parameter Statement
H - Hypotheses
A - Assumptions & Conditions
N - Name the Test and state the curve you're using
T - Test Statistic - Round your value to TWO decimals and state
the command you used to find this value
O - Obtain the
P-Value or Critical Value . State the command you are using to
find these values
M - Make a Decision about the Null Hypothesis and explain
why
S - State Your Conclusion About the Claim