147k views
2 votes
A 90% confidence interval is found to be (120,140). What is the margin of error?

1 Answer

2 votes

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.

User Jaswinder Singh
by
5.3k points