Question

Can someone please help me.
see attachment.

Answer 1

I'm sure some one asked the same question yesterday

Answer 2

yes me lol

Answer 3

i thought i was doing it right but it says my answers are wrong.

Answer 4

So you have a way of checking your answer?

Answer 5

yah its a math lab. u put the answer in and it says if you're right or wrong.

Answer 6

Ok the last time i've done statistics is 5 years ago, so I will try and work out the answer, you tell me if it's right, then i will explain the method

Answer 7

ok! :)

Answer 8

try 0.5 and 2.4

Answer 9

it says it's wrong.

Answer 10

To be honest to work out the confidence interval, the sample size must be >30, in this case you only have 9 specimens.

Answer 11

i'll find the example so maybe you can look at that. It's confusing to me.

Answer 12

I have to go at the moment, but I will be back in 3 hours if you haven't sorted this out by then i will help you

Answer 13

ok Thanks for the help. :)

Answer 14

@Bad2zBone this is how i guess it was supposed to be solved. lol it gave me a new question but it turned out to have the same exact answer.

Answer 15

Well the reason my answers were incorrect is because i didn't round up the mean or the s.d. because that would affect the results. I used the same method as you presented.