A TV news magazine states that the results of their study of the average number of complaints per week about
garbage pick-up in the city had a margin of error of +/- 2.1 at the 95% confidence level based on their
examination of data from a random sample of 30 weeks over the past 3 years. For this statement to be true,
what was the approximate population standard deviation that the organization must have used to compute the
margin of error?

what is the information provided?

step-by-step explanation:

i think the answer is true

step-by-step explanation:

your answer is -9

step-by-step explanation:

x coordinate can be written by using the formula, x= x1 + 2/5(x2 - x1)

step-by-step explanation:

formula

x = x1 + p/w(x2 - x1)

let the line segment ab with a(x1,y1) and b(x2,y2)

a point(x,y) divide ab in the ratio, 2: 3 the x coordinate can be written as

x = x1 + p/w(x2 - x1)

here p=2 and w = 2+3

therefore,

x coordinate can be written by using the formula, x= x1 + 2/5(x2 - x1)

similarly y coordinate y = y1 + 2/5(y2 - y1)