The melting point of each of 16 samples of a certain brand of hydrogenated vegetable oil was determined, resulting in x = 54.32. Assuming that the distribution of melting point is normal with = 1.20 (a) Test the hypothesis H0 : = 55 versus H : ≠ 55 using = 0.01 (b)If a level 0.01 test is used, what is (54), the probability of a type II error when = 54? (c) What value of is necessary to ensure that 54 = 0.1 when = 0.01

Arepresentative from plan 1 wants to use the graph below to sell health plans for his company. how might the graph be redrawn to emphasize the difference between the cost per doctor visit for each of the three plans? the scale on the y-axis could be changed to 0–100. the scale on the y-axis could be changed to 25–40. the interval of the y-axis could be changed to count by 5s. the interval of the y-axis could be changed to count by 20s.