A nutritionist claims that the mean tuna consumption by a person is 3.9 pounds per year. A sample of 70 people shows that the mean tuna consumption by a person is 3.5 pounds per year. Assume the population standard deviation is 1.23 pounds. At a = 0.06, can you reject the claim? (a) Identify the null hypothesis and alternative hypothesis. A. Ho p=3.9 Ha p#3.9 OD. Ho: #3.5 Ha p=3.5 (b) Identify the standardized test statistic. Z= (Round to two decimal places as needed.) B. Ho: >3.9 Hap3.9 OE. Hos3.5 Ha: >3.5 OC. Ho: p3.9 Ha >3.9 OF Ho: >3.5 Ha: 3.5