Answer:
The 95% confidence interval for the population mean is between 61.5 and 68.5.
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 M as such
In which 
is the standard deviation of the population and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 65 - 3.5 = 61.5
The upper end of the interval is the sample mean added to M. So it is 65 + 3.5 = 68.5
The 95% confidence interval for the population mean is between 61.5 and 68.5.
Answer:
Point slope:y - y1 = m(x -x1)y - y1 = m(x -x1)
Given values: (x1 , y1) = (2 , 3)m = 3
Solution: y - 3 = 3(x - 2
Step-by-step explanation:
hope this helps if not let me know have a good day
<span>n = 9 * 27 + 2 * 31 - 28
n = 243 + 62 - 28
n = 305 - 28
n = 277
Firstly do the multiplications and divisions, then additions and substractions.
Hope I could help :)</span>
Answer:
1000 in base 14
Step-by-step explanation:
DDD + 1 = 1000 in base 14
