Introduction to the Practice of Statistics 9th edition by David S. Moore Test bank

 C)50.1
 D)57.5
 
 
63.During the early part of the 1994 baseball season, many sports fans and baseball players noticed that the number of home runs being hit seemed to be unusually large. Below are separate stemplots for the number of home runs by American League and National League teams based on the team-by-team statistics on home runs hit through Friday, June 3, 1994 (from the Columbus Dispatch, Sunday, June 5, 1994).
 

 
Legend: 2|9 represents 29.
 
What is the maximum number of home runs from a National League team?
 A)7
 B)70
 C)67
 D)48
 
 
64.The pie chart provides information on all the majors at a university.
 

 
What conclusion can we draw based on this pie chart?
 A)The most popular major is in the “Other” category and therefore not shown.
 B)More than half of the students at this university are majoring in Public Health, French, Business, Computer Science, or Economics.
 C)More students are majoring in Education than in French.
 D)The smallest major is Mathematics/Statistics.
 
 
65.The Consumers Union measured the gas mileage in miles per gallon of 38 automobiles from the 1978–1979 model-year on a special test track. The pie chart below provides information about the country of manufacture of the automobiles used in this study by the Consumers Union.
 

 
Which of the following bar graphs represents the same data as in the pie chart?
 A) 

 B) 

 C) 

 D) 

 
 
66.A study is being conducted on air quality at a small college in the South. As part of this study, monitors were posted at every entrance to this college from 6:00 a.m. to 10:00 p.m. on a randomly chosen day. The monitors recorded the mode of transportation used by each person as they entered the campus. Based on the information recorded, the following bar graph was constructed.
 

 
Approximately what percentage of people entering campus on this particular day arrived by car?
 A)9%
 B)31%
 C)53%
 D)62%
 
 
67.A study is being conducted on air quality at a small college in the South. As part of this study, monitors were posted at every entrance to this college from 6:00 a.m. to 10:00 p.m. on a randomly chosen day. The monitors recorded the mode of transportation used by each person as they entered the campus. Based on the information recorded, the following bar graph was constructed.
 

 
If 1200 people entered campus on this particular day, (approximately) how many people arrived by bus?
 A)10
 B)100
 C)120
 D)135
 
 
68.The timeplot below gives the number of burglaries committed each month for a city in Ohio. The plot is for the three-year period of January 1987 to December 1989.
 

 
What is approximately the number of burglaries in December 1989, the last date recorded in the timeplot?
 A)22
 B)27
 C)32
 D)37
 
 
69.The timeplot below gives the number of burglaries committed each month for a city in Ohio. The plot is for the three-year period of January 1987 to December 1989.
 

 
Determine whether each of the following statements is true or false.
A)The number of burglaries in each month of 1988 was lower than the number of burglaries in each month of 1989.
B)The median number of burglaries per month in 1988 was a little over 25.
C)The total number of burglaries in 1989 was higher than in 1988.
D)The graph is bimodal.
 
 
70.The timeplot below gives the number of burglaries committed each month for a city in Ohio. The plot is for the three-year period of January 1987 to December 1989.
 

 
What is approximately the maximum number of burglaries for a month in 1988?
 A)20
 B)25
 C)30
 D)35
 
 
71.A study of 2007 model automobiles was conducted. In the study the following variables were considered: the Region in which the car was manufactured (Europe, North America, Asia); the Type of automobile (compact, midsize, large); the fuel economy in city driving of the automobile (MPG-City); volume of the engine in liters (EngSize); and the type of Fuel used (regular, premium, diesel). The variables Region, Type, MPG-City, EngSize, and Fuel are, respectively,
 A)quantitative, categorical, categorical, quantitative, quantitative.
 B)categorical, categorical, quantitative, categorical, categorical.