The area of a parking lot is calculated to be 5,474 ft2 with an estimated standard deviation of 2 ft2. What is the Maximum Anticipated Error? There is a 90% chance that the error range will be what?

Answer: There is a 90% chance that the error range will be with in 3.29 ft².

Step-by-step explanation:

Given : The area of a parking lot is calculated to be 5,474 ft².

Estimated standard deviation = 2 ft²

The critical z-value for 90% confidence interval is 1.645 (from z-table)

Then, the Maximum Anticipated Error = (critical z-value) x (standard deviation)

= 1.645 (2) = 3.29 ft²

i. e. Maximum Anticipated Error = 3.29 ft²

Hence, there is a 90% chance that the error range will be with in 3.29 ft².