Exam 3: Numerical Descriptive Measures

TABLE 2-18 The stem-and-leaf display below shows the result of a survey of 50 students on their satisfaction with their school,with the higher scores representing a higher level of satisfaction. -Referring to Table 2-18,what was the highest level of satisfaction?

TABLE 2-10 The histogram below represents scores achieved by 200 job applicants on a personality profile. -Referring to the histogram from Table 2-10,________ percent of the applicants scored below 20 or at least 50.

Which of the following is not a measure of central tendency?

TABLE 2-18 The stem-and-leaf display below shows the result of a survey of 50 students on their satisfaction with their school,with the higher scores representing a higher level of satisfaction. -True or False: Some business analytics involve starting with many variables and are then followed by filtering the data by exploring specific combinations of categorical values or numerical range.

TABLE 2-16 The figure below is the percentage polygon for the amount of calories for a sample of 36 pizza products where the upper limits of the intervals are: 310,340,370,400 and 430. -Referring to Table 2-16,roughly what percentage of pizza products contains between 400 and 430 calories?

TABLE 2-12 The table below contains the opinions of a sample of 200 people broken down by gender about the latest congressional plan to eliminate anti-trust exemptions for professional baseball. -Referring to Table 2-12,________ percent of the 200 were males who were neutral.

TABLE 2-18 The stem-and-leaf display below shows the result of a survey of 50 students on their satisfaction with their school,with the higher scores representing a higher level of satisfaction. -True or False: When you work with many variables,you must be mindful of the limits of the information technology as well as the limits of the ability of your readers to perceive and comprehend your results.

TABLE 2-9 The frequency distribution below represents the rents of 250 randomly selected federally subsidized apartments in a small town. -Referring to Table 2-9,________ of the apartments rented for $1,400 or more.

Which of the following statistics is not a measure of central tendency?

TABLE 2-18 The stem-and-leaf display below shows the result of a survey of 50 students on their satisfaction with their school,with the higher scores representing a higher level of satisfaction. -True or False: The Guidelines for Developing Visualizations recommend avoiding uncommon chart types such as doughnut,radar,cone and pyramid charts.

TABLE 2-18 The stem-and-leaf display below shows the result of a survey of 50 students on their satisfaction with their school,with the higher scores representing a higher level of satisfaction. -True or False: Given below is the scatter plot of the number of employees and the total revenue (millions$)of 20 U.S.companies.Companies that have higher numbers of employees appear to also have higher total revenue.

TABLE 2-18 The stem-and-leaf display below shows the result of a survey of 50 students on their satisfaction with their school,with the higher scores representing a higher level of satisfaction. -True or False: The Guidelines for Developing Visualizations recommend using varying scale to conserve precious space whenever possible.

TABLE 2-18 The stem-and-leaf display below shows the result of a survey of 50 students on their satisfaction with their school,with the higher scores representing a higher level of satisfaction. -Referring to Table 2-18,how many students have a satisfaction level below 60?

TABLE 2-14 The table below contains the number of people who own a portable Blu-ray player in a sample of 600 broken down by gender. -Referring to Table 2-14,________ percent of the 600 were females.

TABLE 2-18 The stem-and-leaf display below shows the result of a survey of 50 students on their satisfaction with their school,with the higher scores representing a higher level of satisfaction. -True or False: There is no significant difference between filtering performed in a complex real-world business analytic and filtering performed using the slicers in a PivotTable in Excel.

TABLE 2-12 The table below contains the opinions of a sample of 200 people broken down by gender about the latest congressional plan to eliminate anti-trust exemptions for professional baseball. -Referring to Table 2-12,of the females in the sample,________ percent were either neutral or against the plan.

Which measure of central tendency can be used for both numerical and categorical variables?

TABLE 2-9 The frequency distribution below represents the rents of 250 randomly selected federally subsidized apartments in a small town. -Referring to Table 2-9,the percentage of apartments renting for less than $1,400 is ________.

TABLE 2-17 The following table presents total retail sales in millions of dollars for the leading apparel companies over a two-year period. -Referring to Table 2-17,construct a table of column percentages.

Which of the following is not sensitive to extreme values?