help please

7. [40.22 Points] DETAILS BBUNDERSTAT12 6.5.0135. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Coal is carried from a mine in West Virginia to a power plant in New York in hopper cars on a long train. The automatic hopper car loader is set to put 80 tons of coal into each car. The actual weights of coal loaded into each car are normally distnbuted, with mean 1.1. = 80 tons and standard deviation 0' = 1.1 ton. L11 USE SALT (a) What is the probability that one car chosen at random will have less than 79.5 tons of coal? (Round your answer to tour decimal places.) : (b) What is the probability that 28 cars chosen at random will have a mean load weight ; of less than 7'95 tons of coal? {Round your answer to tour decimal places.) : {0} Suppose the weight of coal in one car was less than 79.5 tons. Would that fact make you suspect that the loader had slipped out of adju stme nt? 0 Yes O No Suppose the weight of coal in 28 cars selected at random had an average xof less than 79.5 tons. Would that fact make you suspect that the loader had slipped out of adjustment? Why? 0 Yes, the probability that this deviation is random is very small. 0 Yes, the probability that this deviation is random is very large. 0 No, the probability that this deviation is random is very small. 0 No. the probability that this deviation is random is very large. Need Help? __