Tom wants to order tickets online so that he and his three friends can go together to the water park the cost of the tickets is
2 answers:
You might be interested in
Answer:
C.
Step-by-step explanation:
=
= Since
= So, It becomes :
=
Answer:
Step-by-step explanation:
H0: µ1 – µ2 = 0
HA: µ1 – µ2 ≠ 0
We have given,
The population variances are not known and cannot be assumed equal.
The test statistic for the test is
Where,
= sample meaan of population 1
= sample mean of population 2
= sample size of population 1
= sample size of population 2
Therefore, this is the test