Answer:
Step-by-step explanation:
it would be to remove wastes
the answer is A
Answer: C
Rejecting the null hypothesis means we've found a significant difference in the means. That means the probability that we'd see means so far apart by chance is less than our threshold of significance.
8 • (8y2 - 9)
=t
times 
=6 times t or 
=6t or 
=6t
