Deck 22: Comparing Counts

Question 1

Tests for adverse reactions to a new drug yielded the results given in the table.The data will be analyzed to determine if there is sufficient evidence to conclude that an association exists
Between the treatment (drug or placebo) and the reaction (whether or not headaches were
Experienced).

A)Goodness-of-fit
B)Homogeneity
C)Independence

Answer 1

C

Question 2

The data will be analyzed to determine if they provide sufficient evidence to conclude that an association exists between car color and the likelihood of being in an accident.

A)Goodness-of-fit
B)Homogeneity
C)Independence

Answer 2

C

Question 3

The following data were collected to determine whether or not the retirement age is the same for people in different professions.

Answer 3

B

Question 4

A die, suspected of being unfair, was rolled 50 times.The number of times each face appeared was recorded in the following table.

Question 5

A manufacturing plant for recreational vehicles receives shipments from three different parts vendors.There has been a defect issue with some of the electrical wiring in the recreational
Vehicles manufactured at the plant.The plant manager believes that the defect issue is
Dependent on the parts vendor.The plant manager reviews a sample of quality assurance
Inspections from the last six months.The expected number of perfect parts from Made-4-U
Co)is

Question 6

The data will be analyzed to determine if they provide sufficient evidence to conclude that an association exists between car color and the likelihood of being in an accident.

Question 7

Vending machines on a college campus offer a variety of snacks.The purchasing agent believes that each type of snack is equally preferred by students and consequently orders
Equal quantities.The number of snacks sold from vending machines on this campus for the
Last six months is shown in the following table.If the purchasing agent is correct, how many
Candy bars would we expect to have been sold?

Question 8

Tests for adverse reactions to a new drug yielded the results given in the table.The data will be analyzed to determine if they provide sufficient evidence to conclude that an association
Exists between the treatment (drug or placebo) and the reaction (whether or not headaches
Were experienced).

Question 9

The following data were collected to determine whether or not the retirement age is the same for people in different professions.

Question 10

A candy company claims that its bags of mixed suckers are 20% strawberry, 30% cherry, 15% apple, 10% lemon, and 25% grape.A bag was purchased, and the number of each type
Of flavor was recorded in the chart below.

A)Goodness-of-fit
B)Homogeneity
C)Independence

Question 11

A candy company claims that its bags of mixed suckers are 20% strawberry, 30% cherry, 15% apple, 10% lemon, and 25% grape.A bag was purchased, and the number of each type
Of flavor was recorded in the chart below.

Question 12

The Book Industry Study Group, Inc.performs sample surveys to obtain information on characteristics of book readers.A book reader is defined to be one who read one or more
Books in the six months prior to the survey; a non-book reader is defined to be one who read
Newspapers or magazines but no books in the six months prior to the survey; a nonreader is
Defined to be one who did not read a book, newspaper, or magazine in the six months prior to
The survey.The following data were obtained from a random sample of 1429 persons 16
Years old and over in an effort to determine whether or not the proportions of book readers,
Non-book readers, and non-readers are the same for each income bracket.

Question 13

The following data were collected to determine whether or not the retirement age is the same for people in different professions.

Question 14

The Book Industry Study Group, Inc.performs sample surveys to obtain information on characteristics of book readers.A book reader is defined to be one who read one or more
Books in the six months prior to the survey; a non-book reader is defined to be one who read
Newspapers or magazines but no books in the six months prior to the survey; a nonreader is
Defined to be one who did not read a book, newspaper, or magazine in the six months prior to
The survey.The following data were obtained from a random sample of 1429 persons 16
Years old and over in an effort to determine whether or not the proportions of book readers,
Non-book readers, and non-readers are the same for each income bracket.

Question 15

Tests for adverse reactions to a new drug yielded the results given in the table.The data will be analyzed to determine if they provide sufficient evidence to conclude that an association
Exists between the treatment (drug or placebo) and the reaction (whether or not headaches
Were experienced).

Question 16

The Book Industry Study Group, Inc.performs sample surveys to obtain information on characteristics of book readers.A book reader is defined to be one who read one or more
Books in the six months prior to the survey; a non-book reader is defined to be one who read
Newspapers or magazines but no books in the six months prior to the survey; a nonreader is
Defined to be one who did not read a book, newspaper, or magazine in the six months prior to
The survey.The following data were obtained from a random sample of 1429 persons 16
Years old and over in an effort to determine whether or not the proportions of book readers,
Non-book readers, and non-readers are the same for each income bracket.

Question 17

The following data were collected to determine whether or not the retirement age is the same for people in different professions.