Answer:
m=15.45?
Step-by-step explanation:
Answer:
Step-by-step explanation:
Answer:
The null hypothesis is 
The alternative hypothesis is
Step-by-step explanation:
From the question we are told that
The mean of method A is
The standard deviation of method A is
The mean of method B is
The standard deviation of method B is 
An appropriate set of null and alternative hypothesis to determine whether Method A increases students points by more than 3 points is
The null hypothesis is 
The alternative hypothesis is
<span>Express 0.456 as a percent
=
45.6%
hope it helps</span>
Answer:
There Is no problem.
Step-by-step explanation:
I would love to help you once you add a question. Have a blessed day!