Apple wishes to understand how many appsan iPhoneuser has on their phone. They take a survey of 247 iPhoneusers and find an average of 168.34 appson a user's iPhone. From previous research, they know that the standard deviation for the number of appson an iPhoneis 83.19 apps. Using technology, find the upper bound for the 95% confidence interval estimate for the number of appson an iPhone. Answer with at least 2 decimal places