Question

e mean IQ for 100 residents of the local apartment complex is 110. What is the best point estimate for the mean IQ for all residents of the local apartment complex?

Answer 1

110 IQ too!

Explanation:

For statistical problems, especially for ones with large enough sample sizes like this one (n = sample size = 100), the means for various samples is usually equal to the population mean.

It is the standard deviation of sample that differs from the standard deviation of the population through

σₓ = σ/√n

But, The mean of the sample = The population mean

μₓ = μ = 110 IQ