A company selling licenses for new e-commerce computer software advertises that firms using this software obtain, on average during the first year, a yield of 11% on their initial investments. A random sample of 10 of these franchises produced the yields shown below for the first year of operation. 6.7 11.8 8.3 12.4 3.1 8.7 10.9 9.4 8.2 9.5 Assuming that population yields are normally distributed, test the company's claim at the 10% significance level. Click the icon to view the upper critical values of the Student's t distribution. A. Ho: =11 H: 11 C. H: 11 : = 11 B. H: 11 < 11 D. Ho: 11 H: > 11 For this test at the significance level & with sample mean x, hypothesized mean , sample standard deviations, and sample size n, what is the form of the decision rule? - A. Reject Ho if < -tn-1, x - Ho x-Ho B. Reject Ho if tn-1, Determine the value(s) for - tn - 1,, n - 1,, or n - 1,a/2 as appropriate for this test. (Round to two decimal places as needed. Use a comma to separate answers as needed.)