Answer:
Mean = 94
Standard deviation = 1.12
The sampling distribution of the sample mean is going to be normally distributed, beause the size of the samples are 80, which is larger than 30.
Step-by-step explanation:
The Central Limit Theorem estabilishes that, for a random variable X, with mean
and standard deviation
, the sample means with size n of at least 30 can be approximated to a normal distribution with mean
and standard deviation, which is also called standard error 
In this problem, we have that:

By the Central Limit Theorem
The sampling distribution of the sample mean is going to be normally distributed, beause the size of the samples are 80, which is larger than 30.
Mean = 94
Standard deviation:

Answer:
The answer is s=-1 or s=-12
Step-by-step explanation:
First Step: Factor left side of equation.
(s+1)(s+12)=0
Second Step: Set factors equal to 0.
s+1=0 or s+12=0
So, the answer is either -1 or -12
Answer:
Fractional form, y = 1/27, y = -1/7
Decimal form, y = 0.037 bar, y = -0.037 bar
Answer:
x>−4 or x<−8
Step-by-step explanation:
Answer:
2/3
Step-by-step explanation:
rise over run
up and over