Suppose a study was done to determine if it is true that single
women change their bed sheets more times per year, on average, than
single men. A random sample of 200 single women changed their
bed sheets 18 times per year, on average, with a sample standard
deviation of 4 sheet changes. A random sample of 200 single men
changed their bed sheets 16 times per year, on average, with a
sample standard deviation of 2 sheet changes.
Perform a hypothesis test at the 1% level. What is the general
conclusion reached?
There's not enough evidence to conclude that single women change
their bed sheets less times per year, on average, than single
men
None of the above
There's enough evidence to conclude that single women change
their bed sheets more times per year, on average, than single
men
There's enough evidence to conclude that single women change
their bed sheets less times per year, on average, than single
men
There's not enough evidence to conclude that single women change
their bed sheets more times per year, on average, than single
men