Question

Please help me understand how to compute this on my TI 84 plus. Thank you!

1. A citrus grower’s association believes that the mean consumption of fresh citrus fruits by Americans is at most 125 pounds per year. A random sample of 205 Americans has a mean of consumption of fresh citrus fruit of 130 pounds. Assume that the standard deviation of the population of fresh citrus fruit consumptions by Americans is 35 pounds per year. At a= .03, can you reject the association’s claim that the mean consumption of fresh citrus fruits by Americans is at most 125 pounds per year?

Answer: a. Claim:

Ho:

Ha:

b. Type I error occurs



c. LTT, RTT or TTT ?



d. Hypothesis testing to use: Why?



e. Critical value:

Rejection region:





f. Standardized test statistic (formula and value)





g. Decision:


h. Interpretation: At  

Answer 1