a researcher is testing whether adults that play cross-word puzzles have a better than average memory. A sample of 62 adults who regularly complete cross-word puzzles were given a standardized memory test. The mean score for the sample was 30.1. For the general population of adults, the distribution of test scores is normal with a mean of = 27.4 and a standard deviation of =13.2. At the 0.01 level of significance do the adults that complete cross-word puzzles have significantly better memory scores than a mean of 27.4?

state the hypothesis. 1)Compute the test statistic. Include if it is z, t or . 2) Find the critical value(s) OR the p-value. 3)Make the decision about the null hypothesis. (Conclude the test.)