POINTSS!! PLS HELP!! A real estate agency says that the mean home sales price in City A is the same as in City B. The mean home sales price for 20 homes in City A is $127,412 . Assume the population standard deviation is $25,876. The mean home sales price for 20 homes in City B is $112,324. Assume the population standard deviation is $27,113. At a=0.01, is there enough evidence to reject the agency's claim? Complete parts 1 through 4 below.
Part 1) Identify the claim and state H0 and Ha.
What is the claim?
A. The mean home sales price in City A is less than in City B.
B. The mean home sales price in City A is the same as in City B.
C. The mean home sales price in City A is not the same as in City B.
D. The mean home sales price in City A is greater than as in City B.
Let City A be sample 1 and let City B be sample 2. Identify H0 and Ha.
:
▼
not equals
less than or equals
greater than or equals
equals
:
▼
less than
equals
greater than or equals
not equals
greater than
less than or equals
Part 2)
Find the critical value(s) and identify the rejection region. Select the correct choice below and fill in the answer box within your choice.
(Round to two decimal places as needed.)
A. The critical values are z0 = +- ?
B. The critical value is z0=?
What is the rejection region? Select the correct choice below and fill in the answer box(es) within your choice.
(Round to two decimal places as needed.)
A. z >?
B. z < ?
C. z <? or z>?
Part 3)
Find the standardized test statistic z.
z=?
Part 4) Decide whether to reject or fail to reject the null hypothesis and interpret the decision in the context of the original claim.
▼
Reject
Fail to reject
. There
▼
is not
is
enough evidence at the 1% level of significance to
▼
reject
support
the agency's claim that the mean home sales price in City A is
▼
the same as
less than
not greater than
not less than
in City B.