Problem 5E

Scores on an IQ test are normally distributed. A sample of 18 IQ scores had standard deviation s = 8. Construct a 95% confidence interval for the population variance σ2.

MSIT 3000 Unit 2 – Obtaining Data Sample – used to gather data on a part of the population o Samples are used because it would be nearly impossible to gather information from/on targeted from the survey Census – a samples that includes entire population o Expensive and time consuming Randomization o Used to avoid biases towards...