Please answer a and b

o For the following data set, analyze the test of hypothesis steps (a = .05) Material Set | II III 37 31 23 23 28 28 17 25 23 21 18 20 S 4.56 4.34 5.91 Mean 24.5 23.5 25.5 a) Is there any evidence that the average for Material Set I\" different from 5? H1 Critical value ,Computed Valuels) Graph Decision b) Is there any evidence that the population proportion for Material Set II is higher than .40 assuming two defectives