Answer:
Step-by-step explanation:
The confidence interval for the population mean x can be calculated as:
Where x' is the sample mean, s is the population standard deviation, n is the sample size and 
is the z-score that let a proportion of 
on the right tail.
is calculated as: 100%-99%=1%
So, 
Finally, replacing the values of x' by 308, s by 17, n by 15 and by 2.576, we get that the confidence interval is:
Answer: REE thats high school work
Step-by-step explanation:
D=ab-c Theres your answer
a-1<span />
If you want to solve the equation
for C, you can work like this: subtract P from both sides:
Add C to both sides:
