Answer:
124
Step-by-step explanation:
Answer:
A sample of 385 is needed.
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 .
That is z with a pvalue of , so Z = 1.96.
Now, find the margin of error M as such
In which is the standard deviation of the population, which is the square root of the variance, and n is the size of the sample.
Assume the variance is known to be 3.61.
This means that
How large of a sample would be required in order to estimate the mean number of reproductions per hour at the 95% confidence level with an error of at most 0.19 reproductions?
A sample of n is needed.
n is found when . So
Rounding up
A sample of 385 is needed.
Answer:
Step-by-step explanation:
Any value <0 that has the absolute value taken of it, becomes positive. Any positive number stays positive when the absolute value taken of it.
abs(-2/3) = 2/3
abs(4) = 4
<h3>given:</h3>
5, 9, 6, 6, 7, 5, 8, 7, 6
<h3>to find:</h3>
the mean of the following data.
<h3>solution:</h3>
add all the values and the divide them by the number of values given.
<u>therefore</u><u>,</u><u> </u><u>the</u><u> </u><u>mean</u><u> </u><u>of</u><u> </u><u>the</u><u> </u><u>given</u><u> </u><u>data</u><u> </u><u>is</u><u> </u><u>7</u><u>.</u>
<u>answer</u><u>=</u><u> </u><u>option</u><u> </u><u>C</u>
Answer:
The answer your looking for is -10
Step-by-step explanation: