Hello!
When you have a non-exact root (irrational number)
Answer:
2.542
Step-by-step explanation:
Given the data :
Customer Pre-training Survey, x1 __Post-training Survey, x2 __ difference, d = (x2-x1)
A 6 8 2
B 5 5 0
C 10 10 0
D 7 10 3
E 6 8 2
F 5 6 1
G 2 8 6
This is a paired test as each subject has two different data values :
Difference in score, d :
dbar = Σd / n
dbar = (2+0+0+3+2+1+6) /
dbar = 14 / 7
dbar = 2
Standard deviation of d ; Sd = √[Σ(d - dbar)²/n-1]
Using calculator ; Sd = 2.082
Test statistic = dbar ÷ (Sd/√n)
Test statistic = 2 ÷ (2.082 / 7)
Test statistic = 2 ÷ 0.7869220
The statistic = 2.5415
Well the 2 is in the thousands and the number before it is six and because of the number before 2 happens to be over 5 the 2 changes into a 3 thus making your answer 133,000
Answer:
141 or 142
Step-by-step explanation:
given = 1 inch - 42 miles
multiply 3.375 inches to 42 miles = 141.75
Answer:
Step-by-step explanation:
Identify the graph and describe the solution set of this system of inequalities.
x
ya- x -10
y> - x-2
3
