Part 1: 1. In the Excel file provided for this assignment, a list of overall dining experience ratings (Outstanding, Very Good, Good, Average, or Poor) of 30 randomly selected patrons at a restaurant was collected. a. What is the measurement level of the Restaurant Ratings variable? b. Find the frequency distribution for this variable and the corresponding proportions. c. Construct a bar chart for this variable using either the frequencies or the proportions. d. In a couple of sentences, summarize this distribution.
Part 2: 1. A 2005 study investigated how many Americans have private health insurance. One thousand people with low income earnings participated in this study. The results showed that 330 of them had private insurance, 550 were covered by Medicare, and 120 had no health insurance. a. What is the measurement level of the variable for this study, Health Insurance Plan? b. Write a frequency distribution for this variable. Add a column to the table to display the percentages. c. Construct a bar chart for this variable using the given frequencies. 2. The survey was also conducted with another 1000 people who are high income earners. These results showed that 870 of them had private insurance, 105 were covered by Medicare, and 25 had no health insurance. a. Write a frequency distribution for the variable Health Insurance Plan for this group of people. Add a column to the table to display the corresponding percentages. b. Construct a bar chart for this variable using the given frequencies. 3. Compare results for low income earners and high income earners: a. What is the ratio private insurance to Medicare coverage for low income earners? What is this ratio for the high earners? b. What is the ratio of no health insurance coverage for low income earners to high income earners? Use the percentage frequencies to answer this question. c. Based on these results, and those from questions 1 and 2, what can you conclude about American private health insurance plans? Write a paragraph to explain and interpret your results.
Part 3: 1. In the Excel file, “Part 3” worksheet, the scores earned on an exam by 40 students in a statistics course are listed. The scores are to be rearranged in the following intervals: Less than 60 61 – 70 71 – 80 81 – 90 91 – 100 a. Using the provided intervals. construct a frequency distribution to display these data. Add column to the table to give the percentages, cumulative frequencies, and cumulative percentage.
b. What are the midpoints for each interval?
c. What are the real limits for the stated limits provided for the intervals?
d. Construct a histogram to display the frequency distribution of the student scores. e. Write a paragraph to interpret your finding
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