In a class of 23,there are 13 girls and 10 pupils who play chess .The number of girls play chess is 4.Find how many boys do not
2 answers:
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The factors are (3.5, -1.12) hope I was able to help
Answer:
Step-by-step explanation:
I chose a power strip for this assignment. The dimensions are (2.7in x 13.2in x 1.6cm(0.625in))
Pt A. The surface area of the box is 33.05in (added up all the sides, <em>l</em>2 + <em>w</em>2 + <em>h</em>2 = surface area)
Pt B. 330.5in (33.05 * 10)
Pt C. 22.28in² (= <em>l</em> * <em>w</em> * <em>h</em> --> 2.7in * 13.2in * 0.625in)
Pt D. Scaled down by factor of 1/10: 2.23in²
Good luck!!
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.