Answer:
What is the most common month? That is the answer
Step-by-step explanation:
Answer:
n=105 just multiply 3*35 youll get 105
Answer:
True
Step-by-step explanation:
Let's take a problem such as 3x-2=6
To isolate the variable, you must get rid of everything on one side and essentially do the inverse to the other side. We see -2, so you have to add 2 to each side.
Now you have 3x=8
Next, we device each side by 3. Right now, x is being multiplied by 3 so we have to do the inverse.
Answer is x = 8/3 or 2.666666666666667
Answer:
For this one the parallel slope is going to be 2/5
Step-by-step explanation:
Answer:
The minimum sample size that we should consider is of 60 employees.
Step-by-step explanation:
We have that to find our 
level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of 
.
So it is z with a pvalue of 
, so 
Now, find the margin of error M as such
In which 
is the standard deviation of the population and n is the size of the sample.
We want our 99 percent confidence interval to have a margin of error of no more than plus or minus 2 minutes. What is the smallest sample size that we should consider?
We need to find n for which 
So
Simplifying by 2
Rounding up
The minimum sample size that we should consider is of 60 employees.
