Question

someone please please help????

Answer 1

@IMStuck

Answer 2

i think its b

Answer 3

It's an observational study. In an experiment, the experimentor would apply some sort of changing dynamic to the people, like a drug or something like that, and then observe the changes that introduction induces. That is not the case here. Yes, it's b.

Answer 4

I would say the last choice on this one.

Answer 5

Because he is looking at the team's amount of points as a whole, not each individual's points.

Answer 6

help with this ?

A study of one thousand teens found that the number of hours they spend on social networking sites each week is normally distributed with a mean of 10 hours. The population standard deviation is 2 hours. What is the 95% confidence interval for the mean?

9.88−10 hours

10−10.12 hours

9.88−10.12 hours

9.76−10.24 hours

Answer 7

pleasssssssssssssssssssseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Answer 8

I'm trying...really I am. Kind of forgot this stuff...

Answer 9

its okay... if you don't know it could you try helping with a different one.?

Answer 10

A study of five hundred adults found that the number of hours they spend on social networking sites each week is normally distributed with a mean of 14 hours. The population standard deviation is 3 hours. What is the margin of error for a 95% confidence interval?

0.134

0.220

0.263

0.313

Answer 11

That one with the teens and the social media is the first choice.

Answer 12

thank you

Answer 13

.220 is the answer to the next one.

Answer 14

okay almost done this one is a picture

Answer 15

do you get it?

Answer 16

I don't remember this at all can cannot help unless I take the time to flip through all my old stats notes.

Answer 17

At least I got the other 2! 2 out of 3...isn't that how the saying goes?

Answer 18

:) totally your so kind for helping , do you get this one? its the last one.!

Answer 19

@Broskishelleh please help dude!

Answer 20

@wolf1728

Answer 21

@jim_thompson5910

Answer 22

@IMStuck