SOLUTION: A random sample of 10 miniatures Tootsie Rolls was taken from a bag. Each piece was weighed on a very accurate scale. The results in grams were 3.087 3.131 3.241 3.241 3.270 3.353

Question 462108: A random sample of 10 miniatures Tootsie Rolls was taken from a bag. Each piece was weighed on a very accurate scale. The results in grams were
3.087 3.131 3.241 3.241 3.270 3.353 3.400 3.411 3.437 3.477
(a) Construct a 90 percent confidence interval for the true mean weight.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A random sample of 10 miniatures Tootsie Rolls was taken from a bag. Each piece was weighed on a very accurate scale. The results in grams were
3.087 3.131 3.241 3.241 3.270 3.353 3.400 3.411 3.437 3.477
(a) Construct a 90 percent confidence interval for the true mean weight.
------------
A random sample of 10 miniature Tootsie Rolls was taken from a bag. Each piece was weighed on
a very accurate scale.
The results in grams were 3.087 3.131 3.241 3.241 3.270 3.353 3.400 3.411 3.437 3.477
(a) Construct a 90 percent confidence interval for the true mean weight.
sample mean = 3.3048 ; sample std = 0.13199
standard error: 1.645*0.13199/Sqrt(10) = 0.06866
---
90% CI: 3.3048-0.06866 < u < 3.3048+0.06866
90% CI:3.23614 < u < 3.37346
===========
Cheers,
Stan H.
===========
RELATED QUESTIONS
A random sample of 10 miniature Tootsie Rolls was taken from a bag. Each piece was... (answered by stanbon)

A random sample of 10 miniature Tootsie Rolls was taken from a bag. Each piece was... (answered by stanbon)

a random sample of 10 miniature tootsie rolls was taken from a bag. each piece was... (answered by stanbon)

(8.46) A random sample of 10 miniature Tootsie Rolls was taken from a bag. Each piece was (answered by stanbon)

A random sample of 10 miniature Tootsie Rolls was taken from a bag. Each piece was... (answered by stanbon)

8.46 A random sample of 10 miniature Tootsie Rolls was taken from a bag. Each piece was... (answered by stanbon)