Professor jennings claims that only 35% of the students at flora college work while attending school. dean renata thinks that the professor has underestimated the number of students with part-time or full-time jobs. a random sample of 77 students shows that 37 have jobs. do the data indicate that more than 35% of the students have jobs? use a 5% level of significance. what are we testing in this problem?

3.17 scores on stats final. below are final exam scores of 20 introductory statistics students. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 (a) the mean score is 77.7 points. with a standard deviation of 8.44 points. use this information to determine if the scores approximately follow the 68-95-99.7% rule. (b) do these data appear to follow a normal distribution? explain your reasoning using the graphs provided below.