Exam 2: Organizing and Visualizing Variables

SCENARIO 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. Own a Portable Blu-ray player Male Female Yes 96 40 No 224 240 -Referring to Scenario 2-14, construct a table of row percentages.

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

SCENARIO 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. For Neutral Against Totals Female 38 54 12 104 Male 12 36 48 96 Totals 50 90 60 200 -Referring to Scenario 2-12, if the sample is a good representation of the population, we can expect percent of those for the plan in the population will be males.

SCENARIO 2-9 The frequency distribution below represents the rents of 250 randomly selected federally subsidized apartments in a small town. Rentin \ Frequency 1,100 but less than 1,200 113 1,200 but less than 1,300 85 1,300 but less than 1,400 32 1,400 but less than 1,500 16 1,500 but less than 1,600 4 -Referring to Scenario 2-9, the relative frequency of the second class is .

You have collected data on the monthly seasonally adjusted civilian unemployment rate for theUnited States over a 10-year period.Which of the following is the best for presenting the data?

SCENARIO 2-10 The relative frequency histogram below represents scores achieved by 200 job applicants on a personality profile. -Referring to the histogram from Scenario 2-10, percent of the job applicants scored between 10 and 20.

SCENARIO 2-7 The Stem-and-Leaf display below contains data on the number of months between the date a civil suit is filed and when the case is actually adjudicated for 50 cases heard in superior court.Stem Leaves 1 234447899 2 22223455678889 3 0011135778 4 02345579 5 112466 6 158 -Referring to Scenario 2-7, the civil suit with the longest wait between when the suit was filed and when it was adjudicated had a wait of months.

SCENARIO 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. Own a Portable Blu-ray player Male Female Yes 96 40 No 224 240 -Referring to Scenario 2-14, percent of the 600 were males who owned a portableBlu-ray player.

SCENARIO 2-13 Given below is the stem-and-leaf display representing the amount of detergent used in gallons (with leaves in 10ths of gallons) in a day by 25 drive-through car wash operations in Phoenix. 9\mid147 10\mid02238 11\mid135566777 12\mid223489 13\mid02 -Referring to Scenario 2-13, if a relative frequency or percentage distribution for the detergent data is constructed, using "9.0 but less than 10.0 gallons" as the first class, what percentage of drive-through car wash operations use at least 10 gallons of detergent in a day?

If the values of the seventh and eighth class in a cumulative percentage distribution are the same, we know that there are no observations in the eighth class.

SCENARIO 2-10 The relative frequency histogram below represents scores achieved by 200 job applicants on a personality profile. -Referring to the histogram from Scenario 2-10, half of the job applicants scored below .

In a contingency table, the number of rows and columns

SCENARIO 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. For Neutral Against Totals Female 38 54 12 104 Male 12 36 48 96 Totals 50 90 60 200 -Referring to Scenario 2-12, of the females in the sample, percent were against the plan.

SCENARIO 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. Own a Portable Blu-ray player Male Female Yes 96 40 No 224 240 -Referring to Scenario 2-14, of the males in the sample, percent owned a portableBlu-ray player.

SCENARIO 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. Own a Portable Blu-ray player Male Female Yes 96 40 No 224 240 -Referring to Scenario 2-14, construct a table of total percentages.

SCENARIO 2-11 The ordered array below resulted from selecting a sample of 25 batches of 500 computer chips and determining how many in each batch were defective. Defects 1 2 4 4 5 5 6 7 9 9 12 12 15 17 20 21 23 23 25 26 27 27 28 29 29 -Referring to Scenario 2-11, construct a frequency distribution for the defects data, using "0 but less than 5" as the first class.

SCENARIO 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. Own a Portable Blu-ray player Male Female Yes 96 40 No 224 240 -Referring to Scenario 2-14, percent of the 600 did not own a portable Blu-ray player.

SCENARIO 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. For Neutral Against Totals Female 38 54 12 104 Male 12 36 48 96 Totals 50 90 60 200 -Referring to Scenario 2-12, percent of the 200 were females who were either neutral or against the plan.

SCENARIO 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. Own a Portable Blu-ray player Male Female Yes 96 40 No 224 240 -Referring to Scenario 2-14, if the sample is a good representation of the population, we can expect percent of the females in the population will not own a portable Blu-ray player.

A Walmart store in a small town monitors customer complaints and organizes these complaints into six distinct categories.Over the past year, suppose the company has received 534 complaints.One possible graphical method for representing these data would be a Pareto chart.