Answer:
The teacher select a sample of n =15 students. And he wanted to know if teaching a smaller class was more effective and students performed better, that means if 
and he obtaind a sample mean of 
.
Based on this the correct system of hypothesis are:
Null hypothesis: 
Alternative hypothesis:
And the best option for this case is:
a. H0:
vs. H1:
.
Step-by-step explanation:
For this case we have the following previous info given:
represent the true mean
represent the true deviation
The teacher select a sample of n =15 students. And he wanted to know if teaching a smaller class was more effective and students performed better, that means if and he obtaind a sample mean of .
Based on this the correct system of hypothesis are:
Null hypothesis:
Alternative hypothesis:
And the best option for this case is:
a. H0: vs. H1: .
Answer:
t=-15.1
Step-by-step explanation:
Answer: Find the formula and there you go
Step-by-step explanation: Each 4 papers = 3 minutes keep adding it until I get near twenty one and don't go over
In the same way as you could factor trinomials on the form of
<span><span><span>x2</span>+bx+c</span><span><span>x2</span>+bx+c</span></span>
You can factor polynomials on the form of
<span><span>a<span>x2</span>+bx+c</span><span>a<span>x2</span>+bx+c</span></span>
If a is positive then you just proceed in the same way as you did previously except now
<span><span>a<span>x2</span>+bx+c=<span>(<span>x+m</span>)</span><span>(<span>ax+n</span>)</span></span><span>a<span>x2</span>+bx+c=<span>(<span>x+m</span>)</span><span>(<span>ax+n</span>)</span></span></span>
<span><span>where c=mn,ac=pq </span><span>and b=p+q=am+<span>n</span></span></span>
Answer:
83
Step-by-step explanation:
17 correctly answered questions x 5 points = 85 points
3 blank questions x 0 points = 0 points
5 wrong questions x -2 = -10 points
85 - 10 = 75 points
75 + 8 = 83
