Ql: ) Classify each of the following as descriptive statistics or inferential statistics. The average points per game, percent of free throws made, average number of rebounds per game, and average number of fouls per game as well as several other measures for players in the NBA are computed. (b) Ten percent of the boxes of cereal sampled by a quality technician are found to be under the labeled weight. Based on this finding, the filling machine is adjusted to increase the amount of fill (c) USA Today gives several pages of numerical quantities concerning stocks listed in AMEX, NASDAQ, and NYSE as well as mutual funds listed in MUTUALS. (d) Based on a study of 500 single parent households by a social researcher, a magazine reports that 25% of all single parent households are headed by a high school dropout. i1) Classify the following data as either qualitative data or quantitative data. In addition, classify the quantitative data as discrete or continuous. (a) The mumber of times that a movement authority is sent to a train from a relay station is recorded for several trains over a two-week period. The movement authority, which is an electronic transmission, is sent repeatedly until a return signal is received from the train. (b) A physician records the follow-up condition of patients with optic neuritis as improved, unchanged, or worse. (c) A quality technician records the length of material in a roll product for several products selected from a production line. (d) The Bureau of Justice Statistics Sourcebook of Criminal Justice Statistics in reporting on the daily use last 10 dults lists

Joan's Nursery specializes in custom-designed landscaping for residential areas. The estimated labor cost associated with a particular landscaping proposal is based on the number of plantings of trees, shrubs, and so on to be used for the project. For cost-estimating purposes, managers use two hours of labor time for the planting of a medium-sized tree. Actual times from a sample of 10 plantings during the past month follow (times in hours). B, C, and D

In automobile mileage and gasoline-consumption testing, 13  automobiles were road tested for 300 miles in both city and highway driving conditions. The following data were recorded for miles-per-gallon performance. City: 16.7 17.2 16.4 14.9 13.7 15.8 17.3 16.5 16.6 15.8 15.7 15.8 16.7 Highway: 20.0 21.2 18.9 19.2 19.8 18.0 17.8 19.2 19.6 21.7 20.0 19.1 19.3 Calculate the mean, median, and mode for City and Highway gasoline consumption (to 1 decimal).   City   Highway Mean       Median       Mode     The data are bimodal:   and

Data was collected for a sample of organic snacks. The amount of sugar (in mg) in each snack is summarized in the histogram below. Which statement below best describes the meaning of the second bin (or class)? A. There were 65 snacks that contained 2 milligrams of sugar. B. There were 2 snacks that contained between 65 and 70 milligrams of sugar. C. There were 2 snacks that contained 65 milligrams of sugar. D. There were between 65 and 70 snacks that contained 2 milligrams of sugar. E. There were 2 snacks that contained 70 milligrams of sugar. F. There were 70 snacks that contained 2 milligrams of sugar.

A factory owner has taken a sample (n = 20) of workers to see how many broken widgets each employee produces per day. For the following data, construct a frequency distribution table. Include columns for observed value (Xcat), frequency, proportion, and percent.        2  1  0  2  1  0  7  3  8  0      1  5  0  0  9  2  0  1  3  0

The densities of several common metals are shown in the following table. Metal Density (g/cm³) iron 7.87 silver 10.49 lead 11.36 zinc 7.13 aluminum 2.70 For her chemistry lab, Kamila needs to identify three metal samples by density. The data she collected is shown in the following table. The metal samples are all rectangular prisms.

Brunt, Rhee, and Zhong (2008) surveyed 557 undergraduate college students to examine their weight status, health behaviors, and diet. Using body mass index (BMI), they classified the students into four categories: underweight, healthy weight, overweight, and obese. They also measured dietary variety by counting the number of different foods each student ate from several food groups. Note that the researchers are not measuring the amount of food eaten, but rather the number of different foods eaten (variety, not quantity). Nonetheless, it was somewhat surprising that the results showed no differences among the four weight categories that were related to eating fatty and/or sugary snacks.Suppose a researcher conducting a follow up study obtains a sample of n = 25 students classified as healthy weight and a sample of n = 36 students classified as overweight. Each student completes the food variety questionnaire, and the healthy-weight group produces a mean of µ = 4.01 for the fatty,…