Please solve correctly part b and write step by step! I don't know where I'm going wrong, I tried everything!!! The answer is not 0.4735, 0.9744,0.4441,0.4734!!!

PLEASE AND THANK YOU!!!

An article suggests a normal distribution with mean 135.1 oz and standard deviation 3.4 oz for the actual contents of jars of a certain type. The stated contents was 133 oz. USES (a) What is the probability that a single jar contains more than the stated contents? (Round your answer to four decimal places.) 0.7324 ./ (b) Among ten randomly selected jars, what is the probability that at least eight contain more than the stated contents? (Round your answer to four decimal places.) 0.4735 x (c) Assuming that the mean remains at 135.1, to what value would the standard deviation have to be changed so that 95% of all jars contain more than the stated contents? (Round your answer to two decimal places.) 1.2727 oz You may need to use the appropriate table in the Appendix of Tables to answer this