The formula for the confidence interval is given by
Sample mean + z*[σ/√n], and
Sample mean - z*[σ/√n]
We have:
Sample mean = 23.95
n = 40
σ = 2.55
z* for 99% confidence = 2.58
Substitute these values into the formula, we have
23.95 + (2.58)(2.55÷√40) = 24.99
23.95 - (2.58)(2.55÷√40) = 22.91
So the lower interval is 22.91 and the highest interval is 24.99
Answer:
length = 16 feet
width = 12 feet
Step-by-step explanation:
divide the length and width by 2 so you get 3 and 4. then you proceed to Multiply both by 4 and you get 12 and 16
6÷2 = 3
8÷2 = 4
3x4= 12
4x4 = 16
6/ 24 green
3/24 blue
2/24 yellow
total 11/24
13/24 left which is white
13 * 2 = 26 white
blue 4 *2 = 8
Answer:
Hi
Step-by-step explanation:
Hi?
Answer:
$116.25
Step-by-step explanation:
10% = $7.50
5% = $3.75
7.50 x 5 = 37.50
37.50 + 3.75 = $41.25
$75 + $41.25 = $116.25
Hope this helps !
