9.19 A random sample of 171 employees was asked to rate, on a scale from 1 (not important) to 5 (extremely important), health benefits as a job characteristic. The sample mean rating was 2.07, and the sample standard deviation was 0.80. Test at the 10% significance level the null hypothesis that the population mean rating is at most 2 against the alternative that it is larger than 2.0.