Step-by-step explanation:
i m not sure about this
have a nice day
For this problem, the confidence interval is the one we are looking
for. Since the confidence level is not given, we assume that it is 95%.
The formula for the confidence interval is: mean ± t (α/2)(n-1) * s √1 + 1/n
Where:
<span>
</span>
α= 5%
α/2
= 2.5%
t
0.025, 19 = 2.093 (check t table)
n
= 20
df
= n – 1 = 20 – 1 = 19
So plugging in our values:
8.41 ± 2.093 * 0.77 √ 1 + 1/20
= 8.41 ± 2.093 * 0.77 (1.0247)
= 8.41 ± 2.093 * 0.789019
= 8.41 ± 1.65141676
<span>= 6.7586 < x < 10.0614</span>
Answer:
See Below
Step-by-step explanation:
This is very simple, but I can help more if you're stuck.
Take the number of pounds multiplied by the cost per pound.
For example, if I had 5 pounds of peaches, and they are $2 per pound...
5 pounds * $2 per pound = $10
Try it on your own :)
Answer:
C. (4,-7)
Step-by-step explanation:
To answer this question, I just graphed the two equations. Then I found where they intersected.
12 times 2 is 24, and 24 times 2 is 48, so there was 48 cookies
