answer all questions with explanation

Question 4 of 4 (1 point) | Attempt . of Unamited |View question in a popup 9 2 Section Exerose 20 (cale) Smartphones: A study found that of 5100 cell phone owners in 2011, 600 owned a smartphone. The study was repeated in 2013 , and 1050 out of 5100 cell phone owners owned smartphones, Part: 0 / 2 Part 1 of 2 (a) Construct a 99.8% confidence Interval for the increase in the proportion of cell phone owners with smartphones between 2011 and 2013, Use the TI-84 Plus calculator and round the answers to three decimal places. A 99.8% confidence interval for the increase in the proportion of cell phone owners with smartphones between 2011 and 2013 is