Asked by Jessica
A random sample of 50 students has a test score average with a standard deviation of 10.9. Find
the margin of error if c = 0.90.
the margin of error if c = 0.90.
Answers
Answered by
MathGuru
Margin of error = + or - 1.645 (sd/√n)
Substitute the values given and determine the margin of error.
(The value of 1.645 was found using a z-table for 90% confidence.)
I hope this helps.
Substitute the values given and determine the margin of error.
(The value of 1.645 was found using a z-table for 90% confidence.)
I hope this helps.
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