Question 1. What is a parameter? What is a statistic? What are statistics used for?
Question 2. Give an example of each of these levels of measurement: Nominal, Ordinal, Ratio
Question 3. What, in your opinion, is the most important step in a research design? Explain why and give at least two reasons. (Should be able to do this in about 50 words or so. Don’t go overboard!)
Question 4. If we have a normal distribution that has a mean of 200 and a standard deviation of 15, find the proportion of the curve that:
Falls between 170 and 230
Falls above 245
Question 5. For a normal curve with a mean of 100 and standard deviation of 8, find the two points that are equidistant from the mean, X1 to the left and X2 to the right, that include 95% of the population.
Question 6. IQ’s have a mean of 100 and a standard deviation of 15. Find the IQ score that defines the top 2.5% of all IQ scores.