Refer to the following statement on page 458: “For example, as you can see from the reported confidence intervals, we can’t rule out the possibility that the differences in IQ at 1 and 2 years of age were in the other direction because the interval covers some negative values.” The statement refers to a confidence interval given in the previous paragraph, ranging from 23.03 to 8.20. Write a paragraph explaining how to interpret this confidence interval that would be understood by someone with no training in statistics. Make sure you are clear about the population to which the result applies.