Question

In a certain state, the mean daily amounts spent on lottery tickets is normally distributed with a mean of $9.50 and a standard deviation of $2.50. If 100 lottery customers are randomly selected, find the probability that they spend a mean daily amount more than $9.05. DON'T JUST WRITE THE FINAL ANSWER - YOU CAN EARN PARTIAL CREDIT IF IT IS INCORRECT IF YOUR RESPONSE IS DETAILED ENOUGH.

Answer 1

Solution: on. M= 9.50 ; 0 6=2.50 ; n=100 P(FS 9.05): Plast-M) :P(as 9.05 -9.50 zorg 2.50 No 1.P(Z C-1.8) EP (23.1.8) = - 0.0359 PLE>9.05) = 10.9641)