Log(ab)=log(a)+log(b)
log_a(a)=1
so
log_a(a)=1
so
A rectangular prism has a volume of 40 cm cubed. The height of the prism is 8 cm. The length is 4 cm longer than the width and t
1 answer:
You might be interested in
Answer:
21
Step-by-step explanation:
Using<em> Simple Random Sampling</em>, we can estimate the sample size by the formula
where
n = sample size
Z = the z-score corresponding to the confidence level 99.5%
S = the assumed standard deviation = 3 seconds
e = margin of error = 2 seconds
<em>It is worth noticing that the higher the confidence level, the larger the sample should be. </em>
The z-score corresponding to a confidence level of 99.5% can be obtained either with a table or the computer and equals
Z = 3.023
Replacing the values in our formula
So the size of the sample should be at least 21.