The use of social networks, for example, Facebook and Twitter, has grown dramatically all over the world. In a recent survey among social network users, it was reported that Indonesians and Saudi Arabians spend the most time per day using social networks. American social network users reportedly spend over 3 hours per day social networking from a computer, tablet, and/or mobile phone. A random sample of 24 American social network users was obtained and each was asked for the amount of time spent (in hours) social networking each day. The sample mean is 3.19 hours with a standard deviation of 0.2903 hours. a) The sample mean of 3.19 hours is an estimate of the population mean time that Americans spend social networking (in hours) per day. Report the standard error of the sample mean (include your units). b) Provide a 90% confidence interval estimate for µ, the population mean number of hours that Americans spend social networking per day. Report to two decimal places and include units. Note: you can assume that the distribution of the number of hours that Americans spend social networking per day is approximately normal. c)Provide an appropriate interpretation of the 90% confidence interval in context.