Using the z-distribution, it is found that the 90% confidence interval for mean calories in a 30-gram serving of all chocolate chip cookies is (143, 149).
We are given the <em>standard deviation</em> for the population, which is why the <em>z-distribution </em>is used to solve this question.
The information given is:
- Sample mean of .
- Population standard deviation of .
- Sample size of .
The confidence interval is:
The critical value, using a z-distribution calculator, for a <u>95% confidence interval</u> is z = 1.645, hence:
The 90% confidence interval for mean calories in a 30-gram serving of all chocolate chip cookies is (143, 149).
A similar problem is given at brainly.com/question/16807970
Given:
cat carrier : 39.99
cat tower: 19.99
1st discount : 5%
2nd discount: 15% - cat tower
39.99 * 5% = 1.99
39.99 - 1.99 = 38
19.99 * (5% + 15%) = 19.99 * 20% = 3.99
19.99 - 3.99 = 16
38 + 16 = 54
Andrea estimated correctly.
[all of the above] 15kg box moving at same speed as 10kg box obviously has more inertia/energy and ogbects in motion will keep going at same velocity until acted upon by an outside force such as friction or it slamming into stuff and such
The answer would be 1/4 or
i hope this answer helps!
Answer:
FEED
Explanation:
Notes on the lines = E G B D F (from bottom to top)
Notes in between the lines = F A C E (from bottom to top)
little help:
you can remember the notes on the line by making a sentence with the letters
ex:
E = every
G = good
B = boy
D = deserves
F = fun