The null hypothesis is H_o: = 12 and the alternative hypothesis is H_a: 12. Assume alpha = 0.01. If the null hypothesis was rejected what would the 99%confidence intervalfor look like?

Select one:

a. (11.1, 15.3)b. (8.5, 12.1)c. (5.3, 15.5)d. (9.8, 10.5)