Solution :
Group Before After
Mean 693.75 743.75
Sd 155.37 143.92
SEM 54.93 50.88
n 8 8
Null hypothesis : The preparation course not effective.
Alternative hypothesis : The preparation course is effective in improving the exam scores.
(after - before)
Answer:
it is not a solution
Step-by-step explanation:
You would plug them in
-1=3(2)-2
-1=6-2
-1=4
2 3/4 = 11/4 <=== written as an improper fraction
Pretty sure it’s the second one
Answer:
Choice A
Step-by-step explanation:
y-intercept = -3
double-checked on calculator
