The null hypothesis is H_o: = 7 and the alternative hypothesis is H_a: 7. Assume alpha = 0.01. If the null hypothesis was rejected what would the 99% confidence interval for look like?

Select one:

a. (8.5, 12.1)

b. (3.1, 15.3)

c. (5.3, 15.5)

d. (6.8, 10.5)