anonymous
  • anonymous
If a z-score is 1.33 and tells you that 1.33 is the standard deviation from the mean, is the z value positive or negative?
Mathematics
katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get this expert

answer on brainly

SEE EXPERT ANSWER

Get your free account and access expert answers to this
and thousands of other questions

IsTim
  • IsTim
Do you have a Z-Score chart with you?
IsTim
  • IsTim
Wait, do you need a z-score chart?
anonymous
  • anonymous
No. i don't but the z score is 1.33 so I am guessing that the z score is negative but i am not sure

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

IsTim
  • IsTim
I always thought you could tell the if the z-score was positive or negative based on whether or not it had a negative sign in front of it...
anonymous
  • anonymous
I think that Since Z = (score-mean)/standard deviation, scores below the mean will have a negative value, and those above the mean will have a positive value.
anonymous
  • anonymous
weren't you told that the z-score is 1.33 > 0 (??)
IsTim
  • IsTim
You know about the graph/diagram right?
anonymous
  • anonymous
I was told that the z score was 1.33 which is 1.33 sd from the mean
anonymous
  • anonymous
Tim, I do not know about the graph/diagram
anonymous
  • anonymous
Broken Fixer do you think that I am correct that the z score is negative?
IsTim
  • IsTim
The graph you draw to solve problems usually.|dw:1327803029445:dw||dw:1327803073992:dw|
anonymous
  • anonymous
Thanks. I am still not sure if I am correct or not that my z score is negative value.
IsTim
  • IsTim
I think it's negative. But I don't know what the mean is. I think that the 1.33 is below the mean in this case thought. REally, I just don't know...
anonymous
  • anonymous
Thanks Tim. I agree. I believe that the 1.33 is below the mean of 17 thus making it a negative z score value, but I am not positive.
anonymous
  • anonymous
? I'm not sure I agree. If you're told that the z value is 1.33, then the z value is 1.33 > 0. If the z value was negative then the z value would have been -1.33.
IsTim
  • IsTim
That's what I thought at first. I was just getting confused though.
IsTim
  • IsTim
You're probably right.
anonymous
  • anonymous
What I was thinking Broken Fixer was. Since Z = (score-mean)/standard deviation, scores below the mean will have a negative value, and those above the mean will have a positive value. The mean is 17 and the z score is 1.33 the z value would be negative. The score was 21 and the mean was 17 standard deviation would be 3
anonymous
  • anonymous
when z = +1.33, you have a raw score that is 1.33 standard devs above the mean of the data
anonymous
  • anonymous
(am I missing part of the problem? where did 17 come from)
anonymous
  • anonymous
x = 21, sigma = 3, mu = 17 will give you z = +1.33 > 0 yes
anonymous
  • anonymous
The raw score is 21 you would subtract the mean of 17 from 21 and divide theat result (4) by the standard deviation of 3. The z-score of 1.33 tell
anonymous
  • anonymous
"z value" is a synonym for "z" is a synonym for "z score" and in this case it is 1.33 >0, because x is above the mean.
anonymous
  • anonymous
so are you saying that the z score in this case is positive?
IsTim
  • IsTim
I agree. I don't remember why I said negative. I know you disagree with this, and probably feel unsatisfied. Try looking through your textbook, or ask another source.
anonymous
  • anonymous
No I aactually get it now and agree. Aftere reading the book again and reading what you and Broken Fixer said, I agree that it is infact a positive value. Thanks for helping me through this!
IsTim
  • IsTim
Wonderful. Glad we helped.

Looking for something else?

Not the answer you are looking for? Search for more explanations.