A company that makes cola drinks states that the mean caffeine content per 12-ounce bottle of cola is 45 milligrams. You want to test this claim. During your tests, you find that a random sample of...

Extracted text: A company that makes cola drinks states that the mean caffeine content per 12-ounce bottle of cola is 45 milligrams. You want to test this claim. During your tests, you find that a random sample of thirty 12-ounce bottles of cola has a mean caffeine content of 43.9 milligrams. Assume the population is normally distributed and the population standard deviation is 6.4 milligrams. At a= 0 09, can you reject the company's claim? Complete parts (a) through (e). B. The critical values are + 1.70. ?) Нelp Identify the rejection region(s). Choose the correct answer below. urses O A. O B. e Home C. Fail to reject Ho- Fail to reject Ho- Fail to reject Ho- nments Reject Ho Reject Ho- Reject Ho- Reject Ho- ebook ter Contents 4 (c) Find the standardized test statistic. z= (Round to two decimal places as needed.) timedia Library (1.1) More dy Plan Clear all Final check View an example Get more help- ols for Success Help me solve this cessible Resources 46°F A O O A OK zille fnr CICCASE. 99+ P Type here to search G521. 10/05/17 Dele Insert FrtSc F12