T'Challa has data on the power usage of T'Chaka's Lodge for the same 50 days covered in Nakia's sample. He calculates the mean of his sample to be 5270 kilowatts. He would like to test whether the power output of Nakia's solar array would be enough to significantly exceed the power usage of T'Chaka's Lodge on average. Which of the following is the most accurate expression of what T'Challa would like to test?

T'Challa plans to take a new sample to determine a confidence interval for the true average daily power generated by Nakia's solar array. The confidence interval will be (choose one):