Answer:
We can select a lower confidence level and increase the sample size.
Step-by-step explanation:
The precision of the confidence interval depends on the margin of error ME = Zcritical * Sqrt[(p(1-p)/n]
In this Zcritical value is in the numerator. Z critical decreases as Confidence level decreases. (Zc for 99% = 2.576, Zc for 95% is 1.96, Zc for 90% = 1.645). Therefore decreasing the Confidence level decreases ME.
Also we see that sample size n is in the denominator. So the ME decreases as sample size increases.
Therefore, We can select a lower confidence level and increase the sample size.
Answer:
-7/2y
Step-by-step explanation:
cancel out the Z's than youre left with -7/2y :}
Answer: m=−y+3−x+2
x=2m+y−3m
Step-by-step explanation:
m(2−x)=3−y
Step 1: Factor out variable m.
m(−x+2)=−y+3
Step 2: Divide both sides by -x+2.
m(−x+2)−x+2=−y+3−x+2
m=−y+3−x+2
__________________________________________________
m(2−x)=3−y
Step 1: Add -2m to both sides.
−mx+2m+−2m=−y+3+−2m
−mx=−2m−y+3
Step 2: Divide both sides by -m.
−mx−m=−2m−y+3−m
x=2m+y−3m
-2w (w + 8)
Assuming that it is a polynomial from which you must find the roots, we must first rewrite it:
-2w (w + 8) = 0
The roots are then:
w1 = 0
w2 = -8
Assuming you only have to rewrite the expression, the answer is:
-2w ^ 2 -16w
Answer:
w1 = 0
w2 = -8
-2w ^ 2 -16w
I believe that is simplified