Activity 12 Instruction: Carefully read the problem and answer the questions that follow. (20 points) Let Me Read and Understand!
Problem 1. A banana company claims that the mean weight of their banana is 150 grams with a standard deviation of 18 grams. Data generated from a sample of 49 bananas randomly selected indicated a mean weight of 153.5 grams per banana. Is there sufficient evidence to reject the company's claim? Use a = 0.05
1. What are the hypotheses?
2. Is it two-tailed or one-tailed test?
3. What is the level of significance?
4. Is the population standard deviation known?
5. What appropriate test statistic (z-test or t-test) can you use?
6. Based on the level of significance, hypothesis test, and test statistic, what is the critical value?
7. Draw the rejection region.​