question archive The cost of investigating insurance claims is known to have mean= $60 with std dev of $10
The cost of investigating insurance claims is known to have mean= $60 with std dev of $10
Subject:StatisticsPrice: Bought3
The cost of investigating insurance claims is known to have mean= $60 with std dev of $10. New company procedures were started then a sample of 36 claims showed an average cost of $57. using x= .05 determine if the costs have decreased. show all work
