2 years ago

A 90% confidence interval is found to be (120,140). What is the margin of error?

1 answer:

3 0

Answer:

There is 10% error in both minimum and extreme values i.e. 120 & 140 , Error in 120 is 10% i.e. = 12, Since value can be more or less in error ∴ Error in 120 is ±12.

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