The standard deviation for a set of data is 6.5. The mean is 255. What is the Margin of Error?
1 answer:
Answer: The margin of error is 12.74.
Step-by-step explanation:
Since we have given that
Standard deviation = 6.5
Mean = 255
Let 95% level of significance,
So, z value = 1.96
We need to find the "Margin of error":
So, it becomes :
Margin of error = Standard deviation × z-value
Margin of error =
Hence, the margin of error is 12.74.
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Step-by-step explanation:
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According to the information given in the exercise, one the solids has edges of 12 feet and the other solid has edges of 24 feet.
Therefore, the ratio of the length of the smaller solid to the length of the is the following:
Now, the ratio to the volumes of the smaller solid to the other one is the following:
Then, knowing that the volume of the smaller solid is:
You get that the volime of the larger solid is: