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)
Answer:
1=x
Step-by-step explanation:
because in a term f(X) is the original thing but when a number replaces it that means x = that number
Answer: 1. 2 cups of raisins 2. 3 bags of snack mix 3. 5 cups of crackers 4. 4 bags of snack mix
Step-by-step explanation:
He was awake for 65% and then fell asleep for the remaining 35%.
Answer:
Step-by-step explanation:
slope=(-2-2)/(-2-6)=-4/-8=1/2
eq. of line is
y-2=1/2(x-6)
2y-4=x-6
2y=x-6+4
2y=x-2
or y=1/2x-1
