In the past, a company used to produce 40 tons of a certain food per day on average. Now, using a new technology, the mean daily yield of the food for a random sample of 25 days of production is 45 tons with a standard deviation of 5 tons. assume that the daily yield of this food is normally distributed.

A.) State the null and alternative hypothesis
B.) in the context of the problem, explain type I error

NEXT THREE MUST BE GIVEN STEPS ON TI84/83 :

C.)find the value of the standardized test statistic
D.) find the p value
E.) find the rejection region and state your decision at significance =0.01