Question 5 + 7 8 9 10 11 12 13 14 15 16 17 18 19 20 data Q Based on the boxplot above, identify the 5 number summary Add Work > Next Question Question 8 Five hundred consumers are surveyed about a new brand of snack food, Crunchicles. Their age groups and preferences are given in the table. 18-24 25-34 35-55 55 and over Total Liked Crunchicles 8 21 29 65 123 Disliked Crunchicles 20 20 21 11 11 63 No Preference 20 24 18 252 314 Total 48 66 58 328 500 One consumer from the survey is selected at random. Leave all answers in a reduced fraction. a. What is the probability that the consumer is 18-24 years of age, given that he/she dislikes Crunchicles? b. What is the probability that the selected consumer dislikes Crunchicles? c. What is the probability that the selected consumer is 35-55 years old or likes Crunchicles? d. If the selected consumer is 70 years old, what is the probability that he/she likes Crunchicles? 16 Question 14 < You work for a soft-drink company in the quality control division. You are interested in the standard deviation of one of your production lines as a measure of consistency. The product is intended to have a mean of 12 ounces, and your team would like the standard deviation to be as low as possible. You gather a random sample of 15 containers. Estimate the population standard deviation at a 98% level of confidence. 12.03 12.07 11.9 12.08 11.93 12.06 12 11.98 12.02 12.16 12.08 11.96 11.87 11.93 11.89 (Data checksum: 179.96) Note: Keep as many decimals as possible while making these calculations. If possible, keep all answers exact by storing answers as variables on your calculator or computer. a) Find the sample standard deviation: b) Find the lower and upper X2 critical values at 98% confidence: Lower: Upper: c) Report your confidence interval for : ( Add Work Question 15 Estimate the population mean by finding a 80% confidence interval given a sample of size 46, with a mean of 50.2 and a standard deviation of 6.7. Preliminary: a. Is it safe to assume that n 30? O No Yes Confidence Interval: What is the 80% confidence interval to estimate the population mean? Enter your answer as an open-interval (i.e., parentheses) accurate to one decimal place. 80% C.I. =