Answer: (1500.66,1599.34)
Step-by-step explanation:
Confidence interval for population mean:

,where
= Sample mean , n= Sample size, z* = critical two tailed z-value ,
= population standard deviation.
As per given , we have
n= 16
square feet
square feet

Critical z-value = 
Confidence interval for population mean:

Required confidence interval: (1500.66,1599.34)
Answer:
yes it sucks. but yet we still use it
Step-by-step explanation:
Answer:
2,1
Step-by-step explanation:
T-5 .9(×,y)
-2,-3
=2,1
15/10 = 1.5 scale factor
X= 9