Math 302 Week 1 Homework UPDATED
ACTUAL Exam Questions and CORRECT
Answers
What was the sampling method that was used in the scenario? A study was done to determine the
age, the number of times per week, and the duration (amount of time) of residents using a local
park in San Antonio, Texas. The first house in the neighborhood around the park was selected
randomly, and then the resident of every eighth house in the neighborhood around the park was
interviewed. - CORRECT ANSWER - Systematic
Duration (amount of time) is what type of data in the scenario? A study was done to determine
the age, the number of times per week, and the duration (amount of time) of residents using a
local park in San Antonio, Texas. The first house in the neighborhood around the park was
selected randomly, and then the resident of every eighth house in the neighborhood around the
park was interviewed. - CORRECT ANSWER - Quantitative Continuous
What is the sampling method used in the following scenario? A teacher wants to know if her
students are doing homework, so she randomly selects rows two and five and then calls on all
students in row two and all students in row five to present the solutions to homework problems
to the class. - CORRECT ANSWER - cluster
The first 50 people who walk into a sporting event are polled on their television preferences.
What type of sampling was used? - CORRECT ANSWER - Convenience
A market researcher polled every tenth person who walks into a store. What type of sampling
was used? - CORRECT ANSWER - Systematic
Which of the following correctly describes the relationship between a sample and a population? -
CORRECT ANSWER - A sample is a group of subjects selected from a population to be
studied.
, A marketing company is interested in the proportion of people who will buy a particular product.
Identify the statistic. - CORRECT ANSWER - the proportion of the sample who will buy
the product
A marriage counselor is interested in the proportion of clients she counsels who stay married.
Identify the sample: - CORRECT ANSWER - a subgroup of clients of this marriage
counselor
Crime-related and demographic statistics for 47 US states were collected from government
agencies, including the FBI's Uniform Crime Report. One analysis of this data found a strong
connection between education and crime indicating that higher levels of education in a
community correspond to higher crime rates. Which of the potential problems with samples
discussed below could explain this connection? - CORRECT ANSWER - Confounding
You are collecting the same data and receive very different results from your classmates. What
do you do? - CORRECT ANSWER - reevaluate data-taking methods
A sample is: - CORRECT ANSWER - a portion of the population under study
Round the following number to four decimal places. Make sure you put the 0 in front of the
decimal.0.05262083399 - CORRECT ANSWER - 0.0526
Crime-related and demographic statistics for 47 US states were collected from government
agencies, including the FBI's Uniform Crime Report. One analysis of this data found a strong
connection between education and crime indicating that higher levels of education in a
community correspond to higher crime rates. Which of the potential problems with samples
discussed below could explain this connection? - CORRECT ANSWER - Casuality
Use the following information to answer the question: The (incomplete) table below contains
data on hurricanes that have made direct hits on the U.S. Between 1851 and 2004. A hurricane is
given a strength category rating based on the minimum wind speed generated by the storm.
Frequency of Hurricane Direct Hits
Category
ACTUAL Exam Questions and CORRECT
Answers
What was the sampling method that was used in the scenario? A study was done to determine the
age, the number of times per week, and the duration (amount of time) of residents using a local
park in San Antonio, Texas. The first house in the neighborhood around the park was selected
randomly, and then the resident of every eighth house in the neighborhood around the park was
interviewed. - CORRECT ANSWER - Systematic
Duration (amount of time) is what type of data in the scenario? A study was done to determine
the age, the number of times per week, and the duration (amount of time) of residents using a
local park in San Antonio, Texas. The first house in the neighborhood around the park was
selected randomly, and then the resident of every eighth house in the neighborhood around the
park was interviewed. - CORRECT ANSWER - Quantitative Continuous
What is the sampling method used in the following scenario? A teacher wants to know if her
students are doing homework, so she randomly selects rows two and five and then calls on all
students in row two and all students in row five to present the solutions to homework problems
to the class. - CORRECT ANSWER - cluster
The first 50 people who walk into a sporting event are polled on their television preferences.
What type of sampling was used? - CORRECT ANSWER - Convenience
A market researcher polled every tenth person who walks into a store. What type of sampling
was used? - CORRECT ANSWER - Systematic
Which of the following correctly describes the relationship between a sample and a population? -
CORRECT ANSWER - A sample is a group of subjects selected from a population to be
studied.
, A marketing company is interested in the proportion of people who will buy a particular product.
Identify the statistic. - CORRECT ANSWER - the proportion of the sample who will buy
the product
A marriage counselor is interested in the proportion of clients she counsels who stay married.
Identify the sample: - CORRECT ANSWER - a subgroup of clients of this marriage
counselor
Crime-related and demographic statistics for 47 US states were collected from government
agencies, including the FBI's Uniform Crime Report. One analysis of this data found a strong
connection between education and crime indicating that higher levels of education in a
community correspond to higher crime rates. Which of the potential problems with samples
discussed below could explain this connection? - CORRECT ANSWER - Confounding
You are collecting the same data and receive very different results from your classmates. What
do you do? - CORRECT ANSWER - reevaluate data-taking methods
A sample is: - CORRECT ANSWER - a portion of the population under study
Round the following number to four decimal places. Make sure you put the 0 in front of the
decimal.0.05262083399 - CORRECT ANSWER - 0.0526
Crime-related and demographic statistics for 47 US states were collected from government
agencies, including the FBI's Uniform Crime Report. One analysis of this data found a strong
connection between education and crime indicating that higher levels of education in a
community correspond to higher crime rates. Which of the potential problems with samples
discussed below could explain this connection? - CORRECT ANSWER - Casuality
Use the following information to answer the question: The (incomplete) table below contains
data on hurricanes that have made direct hits on the U.S. Between 1851 and 2004. A hurricane is
given a strength category rating based on the minimum wind speed generated by the storm.
Frequency of Hurricane Direct Hits
Category
