1. Grameen Phone is the leading telecommunications service provider in Bangladesh . Phone calls arrive at the rate of 5 every 4 minutes for a particular GP Customer Care Service provider . Compute the probability of less than 3 call during 5 minutes ?
2. In EWU There are 1000 Teaching Assistances . The University authority has claimed that The TA students spend on an average 6 hours in the campus with a SD of 1.5 Hours per week . But the Non - TA students have retroactively claimed that the TA students actually spend more than 6 Hours in EWU . To investigate this claim , a faculty has been assigned to investigate it and for that purpose , he has used a sample of 65 TA students and also found that the sample mean is 8 Hours . What is the value of the sample mean of sampling distribution ?