The margin of error of the random selection is 0.20
The given parameters are:
--- the sample size
--- the standard deviation
--- the mean
--- the confidence level.
The margin of error (E) is calculated as follows:
So, we have:
The z-value for 99% confidence level is 2.576.
Substitute 2.576 for z
Take square roots
Multiply
Approximate
Hence, the margin of error is 0.20
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Number of difference arrangements = 5! = 5 x 4 x 3 x 2 x 1 = 120
Answer: There are 120 different arrangements.
Answer:
I do not know what you just said so I assume your asking if 3 is less than 5 and yes 3 is less than 5
Answer:
B
Step-by-step explanation:
the mean is calculated as
mean = 
this year's mean = 
= 
= 4.1
last year's mean = 
= 
= 3.1
difference = 4.1 - 3.1 = 1
Answer:
NO
Step-by-step explanation:
