Answer:
n has to be at least 16577.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of 
, and a confidence level of 
, we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of 
.
The margin of error is:
Out of n randomly selected students she finds that that exactly half attend their home basketball games.
This means that 
99% confidence level
So 
, z is the value of Z that has a pvalue of 
, so 
.
About how large would n have to be to get a margin of error less than 0.01 for p
We have to find n for which M = 0.01. So
Rounding up
n has to be at least 16577.
Answer: -7
Step-by-step explanation:
Down = -
Up = +
Therefore we know to subtract 14 and add 7,
next we do 0 - 14 = -14,
after that we do -14 + 7 = -7,
so we get -7 as the answer.
Nope..... i don't think you can sell -6 tickets... lol
Answer:
x= -1/2 and -32
y = -10
Step-by-step explanation:
1) 2(-4x-8y)= (-48)2
8x+3y =-34
*to create a way to cancel out the x*
2) -8x-16y= -96
8x+3y= -34
*add them
-8x +8x =0
-16y + 3y = -13y
-96+ -34= -130
3) -13y =-130
isolate y
4) y = -10
*plug in* to find x into both original equations*
5) 8x + 3(-10) = -34. -4x-8(-10)= -48
*follow order of operations to solve for x
6) 8x -30 =-34. -4x +80 = -48
7) 8x =-4. -4x =128
8) x= -1/2. x = -32
Answer:
Parallel= y-5x-3
perpendicular=y=5x
Step-by-step explanation:
