Tv ratings in 7000 households. nielsen estimates that 18,000 people live here. suppose nielsen reports american idol had 65% of tv audience. interpret results with 95% confidence based on sample size of18,000 people.

margin of error?

confidence intervals is from % to %

Margin of error = 0.07

Confidence intervals is from 64.3% to 65.7%.

Step-by-step explanation:

Let p be the population proportion of tv audience American idol had.

The formula to find the margin of error is given by :-

, where z* = Critical value , = Sample proportion and n = sample size.

We are given that :

n= 18000

By z-table , Critical value for 95% confidence interval : z*= 1.96

Margin of error:

i.e. Margin of error = 0.07

Confidence interval for population proportion =

=

Hence, Confidence intervals is from 64.3% to 65.7%.

i get you, what you should do is think of the positive things that would come out of it. it will make yours parents proud and raise your grade. you should always try and if you can't focus tell the teacher.

irrational, then, just means all the numbers that aren't rational. every integer is a rational number, since each integer n can be written in the form n/1. however, numbers like 1/2, 45454737/2424242, and -3/7 are also rational, since they are fractions whose numerator and denominator are integers.

step-by-step explanation: