E Homework: Section 7.2 Homework Question 5, 7.2.19-T Part 1 of 2 > HW Score: 0%, 0 of 11 points O Points: 0 of 1 Save A food safety guideline is that the mercury in fish should be below 1 part per million (ppm). Listed below are the amounts of mercury (ppm) found in tuna sushi sampled at different stores in a major city. Construct a 90% confidence interval estimate of the mean amount of mercury in the population. Does it appear that there is too much mercury in tuna sushi? 0.58 0.74 0.10 0.93 1.36 0.49 0.85 C O What is the confidence interval estimate of the population mean ? ppm < . < ppm (Round to three decimal places as needed.) Question 6, 7.2.21-T Part 1 of 3 HW Score: 0%, 0 of 11 points Points: 0 of 1 Save Listed below are the amounts of net worth (in millions of dollars) of the ten wealthiest celebrities in a country. Construct a 90% confidence interval. What does the result tell us about the population of all celebrities? Do the data appear to be from a normally distributed population as required? 242 199 191 162 161 160 147 147 147 147 Homework: Section 7.2 Homework O O What is the confidence interval estimate of the population mean ? million Part 1 of 2 O Points: 0 of 1 Save Listed below are student evaluation ratings of courses, where a rating of 5 is for "excellent." The ratings were obtained at one university in a state. Construct a confidence interval using a 99% confidence level. What does the confidence interval tell about the population of all college students in the state? O 3.9, 2.9, 3.9, 4.5, 3.0, 4.5, 3.8, 4.5, 4.5, 4.5, 4.4, 3.7, 3.0, 3.8, 3.8 What is the confidence interval for the population mean ?