Please show all work. This is a study question, on an old midterm to take an an example given to us by the professor. This is an example of how the exam will be in the future, I already have the answer key but I do not understand most of the abbreviations.

these are the answers: If you could explain them please.

a. Which one?the trucker or grower?would find a Type I error level of 10% preferable to a Type I error of 5%? Please explain your reasoning. The trucker would prefer a higher level of Type I error, since she bears a higher cost if we accept the null that the melons weight 1.5 kg, when in fact that is not true. Higher Type I error allows for lower Type II error.

b. Please formulate a four-step hypothesis test of the question: are the melons overweight? 1. I want to know if the melons in this shipment weigh on average 1.5 kilograms. Let ? be the weight of a melon. Ho: ??1.5 Ha: ?>1.5 Type I error is 5% 2.a. sampling distribution model.

4. 20 A grower of organic melons has contracted with an American trucker to ship her melons to Alabama. By contract, the average weight of the melons should be 1.5 kilograms. If the weight per melon is too much above that weight, the trucker will end up paying extra road usage fees. To check a shipment of about 1,000 cartons of melons, a trucker took a random 2 sample of 49 melons and found that 37:1.8 with a standard deviation of 1.3 kg. The trucker and the grower agree that Type I error should be 5%. a. Which onethe trucker or growerwould nd a Type I error level of 10% preferable to a Type I error of 5%? Please explain your reasoning. b. Please formulate a four-step hypothesis test of the question: are the melons overweight