on data from "Ethological Study of Facial Behaviour in Nonparanoid and Paranoid Schizophrenic Patients" by Pittman et al., Psychiatry, Vol. 144, No. 1). amount of eye contact in a 5 -minute period for a randomly selected person is: (i) At most 239 seconds. For x=239,z= (exact value) and P(X239)= (to 4 decimal places); (ii) At least 173 seconds. For x=173,z= (exact value) and P(X173)= (to 4 decimal places); (iii) Between 140 and 217 seconds. For x=140,z= (exact value); For x=217,z= (exact value); Therefore, P(140X217)= (to 4 decimal places); (b) Let x denote the average amount of eye contact in a 5 -minute period for a randomly selected sample of 100 people. Determine the mean and standard deviation of x. ==;(exactvalue);(exactvalue) (i) At most 195 seconds. For x=195,z= (exact value) and P(x195)= (to 4 decimal places); (ii) Between 167.5 and 200.5 seconds. For x=167.5,z= (exact value); For x=200.5,z= (exact value); Therefore, P(167.5x200.5)= (to 4 decimal places);.
on data from "Ethological Study of Facial Behaviour in Nonparanoid and Paranoid Schizophrenic Patients" by Pittman et al., Psychiatry, Vol. 144, No. 1). amount of eye contact in a 5 -minute period for a randomly selected person is: (i) At most 239 seconds. For x=239,z= (exact value) and P(X239)= (to 4 decimal places); (ii) At least 173 seconds. For x=173,z= (exact value) and P(X173)= (to 4 decimal places); (iii) Between 140 and 217 seconds. For x=140,z= (exact value); For x=217,z= (exact value); Therefore, P(140X217)= (to 4 decimal places); (b) Let x denote the average amount of eye contact in a 5 -minute period for a randomly selected sample of 100 people. Determine the mean and standard deviation of x. ==;(exactvalue);(exactvalue) (i) At most 195 seconds. For x=195,z= (exact value) and P(x195)= (to 4 decimal places); (ii) Between 167.5 and 200.5 seconds. For x=167.5,z= (exact value); For x=200.5,z= (exact value); Therefore, P(167.5x200.5)= (to 4 decimal places);.