Answer: 
Step-by-step explanation:
As per given , we have
n = 11
Since population standard deviation is missing, so we use t-test.
Critical t-value for 99% confidence :
[using two-tailed t-value table]
Confidence interval :
Hence, 99% confidence interval for the mean amount of time that students spend in the shower each day.=
Answer:
3
Step-by-step explanation:
Absoulute Value measures the distance of a number from zero, like distance, absolute value should be always positive
! REMINDER !: You can always double check the answer if hesitant, Don't Pressure yourself and Good Luck!
Let the width be w
Width = w
Length = w + 6
Area = a
a = w(w + 6)
a = w² + 6w
Answer: a = w² + 6w
Answer:
Step-by-step explanation:
I don’t understand
