Question

In a sample of 100 households, the mean number of hours spent on social networking sites during the month of January was 50 hours. In a much larger study, the standard deviation was determined to be 6 hours. Assume the population standard deviation is the same. What is the 98% confidence interval for the mean hours devoted to social networking in January?
The 98% confidence interval ranges from 6 to 50 hours.

Answer 1

Oops .-. One second I forgot the answer choices lol

Answer 2

The 98% confidence interval ranges from 6 to 50 hours.
The 98% confidence interval ranges from 48.60 to 51.40 hours.
The 98% confidence interval ranges from 49.40 to 50.60 hours.
The 98% confidence interval ranges from 50 to 52 hours.

Answer 3

I was about to ask that. lol

Answer 4

Sorrie about that x'D

Answer 5

It's okie

dw.

Answer 6

Anyways, I think that the correct answer is The 98% confidence interval for the mean hours is between 6 and 50.

Answer 7

Hmmm, okie. Tank yew *-* Do yah feel like helping with a few more? and sorry for not writing your work in my handwriting I was busy with my mom and a lot of stuff atm lel

Answer 8

Hey, don't even worry. I could do it. I just had to write it very neatly. which was hard. bc I don't write, I type.

And sure! I can could on some more

Answer 9

Sames XD I type all day. and thank you so much <3!

Answer 10

You're welcome