Question

CAN ANYONE HELP ME FIND A MARGIN OF ERROR?!

Answer 1

TV World sold 1200 television sets this year. 240 of the sets were sold with extended warranties. What is the proportion of sets sold with extended warranties? Write your answer as a decimal. If the decimal is less than 1, write a 0 before the decimal point. Enter your answer to 1 decimal place.

Answer 2

this was the first question and the answer is 0.2

Answer 3

i need to now find the margin of error

Answer 4

I'm not sure what a margin of error is.. let me read up on it

Answer 5

alright

Answer 6

@TuringTest

Answer 7

Sorry i couldn't follow what they meant

Answer 8

you don't know the answer?

Answer 9

or?

Answer 10

i am just unsure on how to calculate this... I've tried several times

Answer 11

If I am interpreting it correctly they first mean the maximum error possible after the 0.2
as in it could be anywhere between 0.2x and 0.1x depending on if we round up or down

Answer 12

so what is the maximum that the x could be?

Answer 13

I also may have misinterpreted the problem

Answer 14

the margin of error comes from the first question i posted....

Answer 15

the answer to that first question gave me 0.2

Answer 16

Margin of error depends on confidence level.\[
\hat{p}\pm z^*{SE}_\hat{p}
\]

Answer 17

but i have no idea what the confidence level is

Answer 18

the first question above is what i am supposed to get the margin of error from

Answer 19

from the 0.2

Answer 20

The standard error can be found to be as follows.\[{SE}_\hat{p}=\sqrt\frac{\hat{p}(1-\hat{p})}{n}\]

Answer 21

to be honest I'm so confused... do u know the answer?

Answer 22

You need to have a confidence level :-) This is AP Statistics right?

Answer 23

no no... this is algebra 2