Answer:
[ 1,532.41, 1,617.59]
Step-by-step explanation:
Data provided :
Sample size, n = 120
Mean = $1,575
Standard deviation = $215
Confidence level = 97%
Now,
Confidence interval = Mean ± 
also,
for 97% confidence level z score = 2.17 [from standard z-table]
= $1,575 ± 
= $1,575 ± 42.59
Therefore,
Confidence interval = [ $1,575 - 42.59, $1,575 + 42.59]
= [ 1,532.41, 1,617.59]
Answer:
b. 5:3
c. 20:12 or 20 cups of flour and 12 eggs
d. 10 cups of flour
e. 9 eggs
Step-by-step explanation:
b. take one point from each number line and simplify it (example 15:9) and simplify it so you get your ratio of (5:3)
c. our ratio for one batch of cookies is 5:3 so mulitply 4 on both sides to find 4 batches of cookies
d. look at your numberline that represents number of eggs, 6 aligns with the number 10 on the numberline that shows "flour in cups" making your answer 10 cups of flour.
e. same thing as the problem before look at your numberline that shows cups of flour (which in this problem its 15) and see where that aligns on the "number of eggs" numberline above.
Answer:
yes
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
2p-b=c-ap
2p+ap=c+b
p(2+a)=c+b
So, p=(c+b)/(2+a)
