A company that makes cola drinks states that the mean caffeine content per 12-ounce bottle of cola is 55 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 54.1 milligrams. Assume the population is normally distributed and the population standard deviation is 7.3 milligrams. At a = 0.08, can you reject the company's claim? Complete parts (a) through (e). (a) Identify Ho and H. Choose the correct answer below. OA. Ho: = 54.1 H 54.1 OC. Ho: us 55 Hiu> 55 OB. Ho: p54.1 H= 54.1 OD. Ho: us 54.1 Hu> 54.1 OF. Ho: u55 OE Ho: 55 Hu55 H 55 (b) Find the critical value(s). Select the correct choice below and fill in the answer box within your choice. (Round to two decimal places as needed.) O A. The critical value is O B. The critical values are t Fail to reject Ho- Oc. Fail to reject Ho Fail to reject H Reject Ho Q Reject Ho/ Reject Ho Reject Ho- (c) Find the standardized test statistic. z= (Round to two decimal places as needed.) (d) Decide whether to reject or fail to reject the null hypothesis. O A. Since z is in the rejection region, reject the null hypothesis. B. Since z is not in the rejection region, fail to reject the null hypothesis. C. Since z is in the rejection region, fail to reject the null hypothesis. D. Since z is not in the rejection region, reject the null hypothesis. (e) Interpret the decision in the context of the original claim. At the 8% significance level, there Venough evidence to V the company's claim that the mean caffeine content per 12-ounce bottle of cola milligrams.

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear re…

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.