Answer:
The 99% confidence interval for the mean amount of money spent on lunch per week for all college students is between $41.40 and $44.60.
Step-by-step explanation:
A confidence interval has two bounds, a lower bounds and an upper bound.
These bounds depend on the sample mean and the margin of error.
The lower bound is the sample mean subtracted by the margin of error.
The upper bound is the margin of error added to the sample mean.
In this problem, we have that:
The sample mean is $43.
The margin of error is $1.60 for a 99% confidence interval.
Lower bound: 43 - 1.60 = $41.40
Upper bound: 43 + 1.60 = $44.60
The 99% confidence interval for the mean amount of money spent on lunch per week for all college students is between $41.40 and $44.60.
Here is your equation simplified
Hope it helps!
To find the area of a trapozoid
((b1+b2)/2)xh
1. 48
2. 784
3. 11.4
4. 31.5
5. 336
6. 150
7. 6
8. 56
9. 2.5
i just put the answers but if you want to check my work then use the formula that i put at the beginning.
Given:
1/2 pound of flour
split the flour into 3 bags of equal weight.
1/2 ÷ 3
In dividing fractions, you must remember to get the reciprocal of the 2nd fraction and multiply it to the 1st fraction.
3 is the 2nd fraction. Its reciprocal is 1/3
1/2 * 1/3 = 1/6 pound of flour.
The False statement is:
C. Each bag has 1/3 pound of flour.
Answer:
See below
Step-by-step explanation:
Tariku in second grade read 6 books each month during the year. This is equal to 6(12) = 72.
Tariku in third grade read 8 books each month during the year. This is equal to 8(12) = 96.
You can find the total amount with any of the below equations:
- 6(12) + 8(12)
- 12(6+8)
- 12(14)
For a total number of months x the equations would be the same except with x instead of 12.
