Answer:
The sample proportion is 0.158.
Step-by-step explanation:
In a confidence interval of proportions, we have the lower bound and the upper bound of the interval. The sample proportion is the halfway points between these bounds, that is, the sum of these bounds divided by 2.
In this problem, we have that:
Lower bound: 0.142
Upper bound: 0.174
Sample proportion: (0.142+0.174)/2 = 0.158
The sample proportion is 0.158.
True, they all have different values !
Answer:
equation: y = 4x-12
slope: 4
y-intercept: -12
Step-by-step explanation:
3 points across an x-axis is +1 x-axis difference and +4 y-axis away from origin, so you have to subtract 3 by 1 andsubtract y by 4. until x is 0, you get -12 on y-axis
p(1+r/n)^(r times n)
P is your start amount
R is rate as a decimal 5% would be 0.05
t is time (years)
n is the number of time compounded , weekly would be 52 times a year.
2300(1 + (0.0212/52))^(52 times 7)
2300(1.0004076)^(364)
Answer:
Packages A and C
Step-by-step explanation:
To find the ratio between the number of lifts to the cost we first remove the $ symbol and find out how much 1 lift will cost per package.
Package A = 3 : 30
Package B = 5 : 60
Package C = 12 : 120
Package D = 16 : 120
Now let's break it down.
Package A = 30/3 = $10 per lift
Package B = 60/5 = $12 per lift
Package C = 120/12 = $10 per lift
Package D = 120/16 = 7.5 per lift
So now we are able to know which packages have the same ratio.
Package A and C cost $10 per lift.
