Question

Statistics/Algebra 2

Answer 1

All else being equal, a study with which of the following error ranges would be the most reliable?

A.±15 percentage points
B.±10 percentage points
C.±5 percentage points
D.±20 percentage points

Answer 2

Is that all the information?

Answer 3

sadly yes

Answer 4

Idk about stats but to figure out a certain problem scientifically you would need to know the errors.

Answer 5

yea I know but this doesn't give no info

Answer 6

Don't take my word for it but I guess you can choose the smallest error.

Answer 7

C?

Answer 8

Yeah I guess, not sure though. Do you have a textbook?

Answer 9

nope its all online

Answer 10

its apex

Answer 11

Well that sucks, well that's what I'd say but I'm not entirely sure :\. Maybe do some research.

Answer 12

letme see if its right

Answer 13

yay its correct ;)

Answer 14

Nice :)

Answer 15

thanks

Answer 16

Np, good luck with your work!

Answer 17

can you help me with my next question?

Answer 18

Sure, I can try.

Answer 19

k thanks

Answer 20

Four research teams each used a different method to collect data on how fast a new brand of paint dries. Assume that they all agree on the sample size and the sample mean (in minutes). Use the (confidence level; confidence interval) pairs below to select the team that has the smallest sample standard deviation.

A. Confidence Level: 99.7%; Confidence Interval: 42 to 48
B. Confidence Level: 95%; Confidence Interval: 40 to 50
C. Confidence Level: 68%; Confidence Interval: 44.5 to 45.5
D. Confidence Level: 95%; Confidence Interval: 35 to 55

Answer 21

You have any formulas for this?

Answer 22

nope

Answer 23

Mhm ok well, I don't know this, and it would require a formula.

Give this video a watch https://www.khanacademy.org/math/probability/statistics-inferential/confidence-intervals/v/confidence-interval-example

Answer 24

I've only taken a minimum of statistics so it's not my greatest subject :d.

Answer 25

this is nothing that i learned -_-