Each of the following statements contains an error. Describe each error and explain why the statement is wrong. a. A goodness-of-fit test can be used to compare the observed distribution of a categorical variable with a distribution specified by an alternative hypothesis. b. The residuals for a chi-square goodness-of-fit test are all positive. c. The expected counts for a goodness-of-fit test are computed by multiplying the sample size by the sample proportion