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The standard deviation for a set of data is 6.5. The mean is 255. What is the Margin of Error?​

2 Answers

5 votes

Answer:

13

just took the test

Explanation:

User VIRA
by
3.8k points
6 votes

Answer: The margin of error is 12.74.

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 =
6.5* 1.96=12.74

Hence, the margin of error is 12.74.

User Blake Lockley
by
3.4k points