Answer: ($143.69, $156.31)
Step-by-step explanation:
Confidence interval to estimate population mean :
, where 
= population standard deviation
n= sample size
Sample mean
z= critical value.
As per given,
n= 40
= $15.50
$150
Critical value for 99% confidence level = 2.576
Then, 99% confidence interval for the population mean:
Hence, the required confidence interval : ($143.69, $156.31)
The answer is any numbers larger than -4, not include -4
Answer:
(0,5)
Step-by-step explanation:
Hope this helped, Have a Great Day!!
Answer:
Step-by-step explanation:
P = perimeter = 114
P =2 * length +2* width
P = 2(2x - 3) + 2(x)
114 = 4x-6 + 2x
114 = 6x -6
19 = x -1
20 = x
check it
2( 2x -3)+2x = ?
4x -6 +2x=?
6x -6 = ?
6(20)-6 =?
120-6 = 114
yep this is correct
