A company that produces cell phones claims its standard phone battery lasts longer on average than other batteries in the market. To support this?claim, the company publishes an ad reporting the results of a recent experiment showing that under normal?usage, their batteries last at least 35 hours. To investigate this?claim, a consumer advocacy group asked the company for the raw?data, which are shown to the right. Find a 95?% confidence interval and state your conclusion. Explain how you dealt with any outliers.

Data set: 33, 33, 34, 34, 34, 31, 30, 33, 34, 54, 35, 33

Plot the data. Choose the correct histogram below.

O A. O B. O C. O D. 12- 12- Q # of Batteries # of Batteries # of Batteries # of Batteries 0 60 60 80 Battery Life (hours) Battery Life (hours) Battery Life (hours) Battery Life (hours)