Homework Statistics 3.4
(c) The violentcrime rate in a certain state of the country in that year was 1.679. Would this be an outlie The lower fence is I: crimes per 100.000 population. The upper fence is :l crimes per 100,000 population. (Round to two decimal places as needed.) The violent-crime rate in a certain state of the country in that yearwas 1,679. Would this be an outlier? O A. Yes, because it is less than the upper fence. 0 B. No, because it is greater than the upper fence. 0 C. Yes, because it is greater than the upper fence. 0 D. No, because it is less than the upper fence. (d) Do you believe that the distribution of violentcrime rates is skewed or symmetric? O A. The distribution of violentcrime rates is skewed right. 0 B. The distribution of violent-crime rates is skewed left. 0 C. The distribution of violent-crime rates is symmetric. 9. The accompanying data represent the miles per gallon ofa random sample of cars with a threecylinder, 1.0 liter engine. (a) Compute the zscore corresponding to the individual who obtained 34.4 miles per gallon. Interpret this result. (b) Determine the quartiles. (c) Compute and interpret the interquartile range, IOR. (d) Determine the lower and upper fences. Are there any outliers? 1 Click the icon to view the data. (a) Compute the z-score corresponding to the individual who obtained 34.4 miles per gallon. Interpret this result. The z-soore corresponding to the individual is I: and indicates that the data value is standard deviation(s) (1) the (2) (Type integers or decimals rounded to two decimal places as needed.) (b) Determine the quartiles. 01 = "mg (Type integers or decimals. Do not round.) (c) Compute and interpret the interquartile range, IQR. Select the correct choice below and ll in the answer box to complete your choice. (Type an integer ora decimal. Do not round.) The interquartile range is :I mpg. It is the range of (3) (d) Determine the lower and upper fences. Are there any outliers? The lower fence is |:|. The upper fence is . (Type integers or decimals. Do not round.) Are there any outliers? Select the correct choice below and. if necessary. fill in the answer box to complete your choice. 0 A- The outlier(s) islare . (Type an integer or a decimal. Do not round. Use a comma to separate answers as needed.) O B. There are no outliers. 1: MPG Data 32.7 35.0 37.9 38.6 40.3 42.4 % 34.2 36.2 38.1 39.1 40.6 42.5 34.4 37.5 38.3 39.5 41.4 43.8 35.7 37.7 38.5 39.8 41.6 49.2 (1) 0 above (2) 0 mean. 0 below 0 median. (3) O the middle 25% ot the observations in the data set. 0 the middle 95% of the observations in the data set. 0 the middle 50% of the observations in the data set. 0 the middle 90% of the observations in the data set. 0 the observations between the lower and upper fences. O the observations between either the lower or upper quartile and the middle quartile; it captures 25% of the observations. O the observations between either the lower or upper quartile and \"we middle quartile; it captures 75% of the observations. 0 the observaons between either the lower or upper quartile and the middle quartile; it captures 50% of the observations. 0 all of the observations in the data set. 10. The accompanying data represent the wait time (in minutes) for a random sample of forty visitors to an amusement park ride. Complete parts (a) and (b). 7 15 4 6 5 29 6 5 24 7 Q 6 49 9 11 33 D 28 4 Q 4 1 9 6 22 9 26 15 53 3 10 28 0 4 7 12 5 6 5 16 9 16 (a) Determine and interpret the quartiles. By the quartiles. about :I% of the wait times are Q1 = |:| minute(s) or less. and about |:|% ot the wait times exceed 01 minute(s); about % of the wait times are 02 = minute(s) or less and about :I% of the wait times exceed 02 minute(s); about % of the wait times are 03 = minute(s) or less, and about :I% of the wait times exceed ()3 minute(s). (Type integers or decimals. Do not round.)
