Question

PLEASE HELP!!! Twelve different video games showing substance use were observed and the duration times of game play (in seconds) are listed below. The design of the study justifies the assumption that the sample can be treated as a simple random sample. Use the data to construct a 90% confidence interval estimate of µ, the mean duration of game play.
4049
3881
3854
4030
4324
4816
4661
4040
5001
4821
4327
4326

What is the confidence interval estimate of the population mean µ ? __ < µ < __ (round to one decimal place as needed)

Answer 1

i found this i think its your problem

Answer 2

Thanks!!

Answer 3

Where did you find this?

Answer 4

that wasnt the anwer :(

Answer 5

try this one:
Margin of error, E = 204.7605

90% Confident the population mean is within the range:
4139.407 < mean <4548.927

Answer 6

Thank you CarlosGP!!!