Answer:
idk math lol sorry for wasting ur time
Step-by-step explanation:
Answer:
7/100
Step-by-step explanation:
We want to write .07 as a fraction
7/100 were a = 7 and b = 100
Answer:
Null hypothesis: 
Alternative hypothesis:
And for this case we assume that we have equal variances so that means:

For this case the degrees of freedom are given by:

And replacing we got:

And the best answer would be:
a. 38
Step-by-step explanation:
For this problem we want to test the following:
Null hypothesis: 
Alternative hypothesis:
And for this case we assume that we have equal variances so that means:

For this case the degrees of freedom are given by:

And replacing we got:

And the best answer would be:
a. 38
3 lots of 3 make 9 use a calculator