Homework You can use Excel to answer the questions (unless it is explicitly specified to use a calculator). Include screenshots of Excel. Include/show your full name in each screenshot Part 1. Problem 1. Results of a 2013 Adobe Systems study on retail apps and buying habits reveals insights on perceptions and attitudes toward mobile shopping using retail apps and browsers, providing new direction for retailers to develop their digital publishing strategies. Increased consumer interest in using shopping applications means retailers must adapt to meet the rising expectations for specialized mobile shopping experiences. The results indicate that tablet users (55%) are almost twice as likely as smartphone users (28%) to use their device to purchase products and services. The findings also reveal that retail and catalog apps are rapidly catching up to mobile browsers as a viable shopping channel: Nearly half of all mobile shoppers are interested in using apps instead of a mobile browser (45% of tablet shoppers and 49% of smartphone shoppers). The research is based on an online survey with a sample of 1,003 1854 year-olds who currently own a smartphone and/or tablet; it includes consumers who use and do not use these devices to shop. a. Describe the population of interest. b. Describe the sample that was collected. c. Describe a parameter of interest. d. Describe the statistic used to estimate the parameter in (c). Notes: a parameter is any quantity that characterizes a given population or some aspect of it. This means the parameter tells us something about the whole population. Some examples of parameters are mean, mode, median, proportion, and variance. A parameter is a characteristic of a population. For example, say you want to know the mean income of the subscribers to a particular magazinea parameter of a population. You draw a random sample of 100 subscribers and determine that their mean income is $27,500 (a statistic). A statistic is a characteristic of a sample. Generally, a statistic is used to estimate the value of a population parameter. For instance, suppose we selected a random sample of 100 students from a school with 10000 students. The average height of the sampled students would be an example of a statistic