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:
the 2nd answer
Step-by-step explanation:
it makes sense
The equation that pases through these sets of points would be
y = 2x + 3
The slope of the equation is 2, and the y-intercept is 3.
16 inches
54/(27/4)
54*(4/27)
8 = 1/2 length
16 <------- Answer
Awww man the other person answered before me :(