Answer correctly

please answer correctly using Excel and show your workings. LA farmer is concerned about his crop of San Marzano tomatoes. Marketing research indicates that most customers don't buy San Marzano that weigh less than 54 grams each. a) The average weight of a San Marzano tomato is 50.1 grams, and only 30% of the tomatoes exceed the desired minimum weight. If a Normal model is appropriate, what would the standard deviation of the tomato weights be? b) The farmer implements a crop improvement process and the new crop of tomatoes produces tomatoes that weigh on average 66.5 grams, and 96% of them are above the minimum weight. What is the standard deviation for the tomatoes of the new crop? c) Another farmer finds that 7% of his tomatos are underweight and that 15% weigh over 72 grams. Estimate the mean and standard deviation of his tomatoes