Answer:
The minimum sample size required is 5,499 computer users.
The major obstacle is that it is a big sample size if it is a small organization wanting to perform it.
Step-by-step explanation:
We need to calculate a sample size in order to have 95% confidence interval with 12 minutes of witdth.
So, we have that the difference between the upper limit and the lower limit is 12:
For a 95% CI, the value of z is 1.96. The standard deviation is 227.
The minimum sample size required is 5,499 computer users.
Answer:
multiply all of it
Step-by-step explanation:
11.3 x 6 x 8 x 8
10.3 x 13 x 9 x 5
=
26145849.6
Reduce
A because if you use T3 it wouldn’t have make sense so only reasonable and solution that works is A
Step-by-step explanation:
- I hope this is the right answer
Answer:
2/4 = 1/2
Step-by-step explanation:
Firstly expand cos(x - 30)....which is..
[cos x.cos 30 + sin x.sin 30]
If sin x = -1/2...then cos x = square root of 3/2
Then substitute the values into the expansion above....which...,
[(square root of 3/2)(square root of 3/2) + (-1/2)(1/2) ]
; 3/4 - 1/4 = 2/4
;Ans = 2/4 = 1/2
