Question

Question Help Suppose that a recent pol found that 40% of adults in a certain country believe that the prevall state of moral values is poor if a survey of a random sample of 15 adults in this country is conducted in which they are asked to disclose their feelings on the overal state of moral values, complete parts al through te below Cck here to view the other p ladsen Click here to view the table for the cumulative nomal prchablity distribution (a) Find and interpret the probability that exactly of those surveyed feel the state of morals is poor The probability that exactly of those surveyed feel the state of morals is poor is Round to four decimal places as needed.) Interpret the results. Choose the correct answer below in 100 trials of this experiment, we expect about to result in exactly adults who feel the state of moral is poor (b) Find and werpret the probability that no more than 2 of those surveyed feel the state of morals is poor The probability that no more than 2 of those surveyed feel the state of morals is poor is Round to four decimal places as needed) Interpret the results. Choose the correct answer below in 100 trials of this experimerk, we expect about to result in no more than 2 adults who feel the state of morals is poor (c) Fad and interpret the probability that more than 10 of those surveyed feel the state of morals is poor The probability that more than 10 of those surveyed to the state of morals is poor is Round to four deamal places as needed) Interpret the results Choose the correct answer below. In 100 trials of this experiment, we expect about to result in more than 10 adults who feel the state of morals is poor (d) Find and interpret the probably that 6 or 7 believe the state of morals is poor The numb Thu l e the state of morals is trois Click to select your answers). 10:22 PM saa * No - 11/10/2019 BackDoce Tab

homework help please. graphs attached

Answer 1

Page No. Data Gived that n= 15 p = 0.4 a) P(X= 8) = (15) 60-4) 0.6) * to In 100 trials of this experiment, we expect about 100 x 0.118) = 11.81 12 to result in exactly 8 adults who feel the state of moral's & poor. Y b P ( x 2) = 0.02919 +0.0047 +0.00047 0.0271 - In 100 trials, we expect 100 x 0.0271 = 2.71 = 3 c) P(x>10) = = P(X=))) + P(X=12) +----+ PCX=15) 0.00742 +0.001649 to 000254 + 0.0000 24 + 0.0000011 In too tals, we expect 100 80.0093 = 0.93 = 1 P(x=6) + P(x=7) = - 0.2066 +0.1771 0:3837 In 100 trials, we expect loox 0.3837 = 38 yes, because the probability of ll or more adults. beliveing the overall State of moral values is poor is very low.