Every confidence interval has associated z value. As confidence interval increases so do the z value associated with it.
The confidence interval can be calculated using following formula:
Where
is the mean value, z is the associated z value, s is the standard deviation and n is the number of samples.
We know that standard deviation is simply a square root of variance:
The confidence interval of 95% has associated z value of <span>1.960.
</span>Now we can calculate the confidence interval for our income:
The last one is the answer
Answer:
-2
Step-by-step explanation:
A negative times a negative is a positive
585 is correct!
LxWxH is for area
Mark with crown!
The answer is (C)L= (P-2W)/2