Answer:
D
Step-by-step explanation:
It's the only equation that gets y correct in every one.
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.
B- i could be wrong though
Answer:
Both
Step-by-step explanation:
22/7 is the fraction version of pi