Answer:
A) ±
Step-by-step explanation:
Answer:
I believe the answer is 4.943 :)
Step-by-step explanation:
82.162-77.219= 04.943
Answer: The test statistic is t= -0.90.
Step-by-step explanation:
Since we have given that
n₁ = 50
n₂ = 25

So, s would be

So, the value of test statistic would be

Hence, the test statistic is t= -0.90.
Answer:
try 67 and see if it was right
Answer:
D
Step-by-step explanation:
if you multiply 5 by 2 you get 10
if you multiply 6 by 2 you get 12
5/2 (2) =10/12
Hope this helped
:)