The following observations were noted from an activity sampling study of a CNC machine Machine working: 800 Machine idle: 450 a) Determine whether the degree of accuracy of the result on a 96% reliability basis is within 15% (5) b) Determine the limit of error for the activities on a 95% reliability basis. (3) c) Determine the additional number of observations required to obtain a +1% as a limit of error for the activities on a 95% reliabilities basis. (5) d) Calculate the degree of accuracy that will be obtained after the additional observations have been made. Interpret the result (3)