It would be 3.01 because 40.00-40.00 is 0 then take away the other numbers 3.68- 0.67 is 3.01
Answer: 
Step-by-step explanation:
The confidence interval for population mean is given by :-

, where
= Population standard deviation.
n= sample size
= Sample mean
z* = Critical z-value .
Given :
n= 49
Two-tailed critical value for 95% confidence interval = 
Then, the 95% confidence interval would be :-




Hence, the 95% confidence interval for estimating the population mean
:

Answer:
x=4
Step-by-step explanation:
Combine like terms
Subtract 4 from both sides of the equation
Simplify
Subtract 5
from both sides of the equation
Simplify
Divide both sides of the equation by the same term
Simplify
Answer - 288
Step-by-step explanation:
i use the formula V=a2 h/3
Answer:
B [2,∞)
Step-by-step explanation: