Description
Week 1 – Introduction to Statistics
Week  Assignments  Due Date 
Week 1  Introduction Forum (Not graded by required) 
Suggested Due Date: Wednesday of Week 1 
Graded Discussion  Suggested Due Date—
Initial Post: Wednesday of Week 1
Due Date— Responses: Sunday of Week 1 [Have two posts on two different days] 

Knewton Homework Assignments
Evidence, Claims and Study Types (Section 1.4) Variable and Measures of Data (Section 1.3) Sampling Methods (Section 1.2) Comparing Sampling Methods (Section 1.2) 
Sunday of Week 1 
Week 1 Assignment – Sampling Methods
Objectives
1.3 Sampling Methods
 Understand the definitions of population, sample, statistic, parameter, and data
Activity 1
Question
You want to find the average test score of the students in every math class in 11th grade. There are 15 math classes in 11th grade. You survey the scores of 7 math classes, and you calculate that the average test score is 83%.
Which of the following represent the sample and the parameter in this scenario?
Select the correct answer below:
 Sample: 7 math classes – Parameter: The parameter is unknown.
 Sample: 7 math classes – Parameter: the average test score of 83%
 Sample: 15 math classes – Parameter: The parameter is unknown.
 Sample: 15 math classes – Parameter: the average test score of 83%
Answer
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Activity 2
Question
Angela wants to estimate the mean number of siblings for each student in her school. She records the number of siblings for each of 200 randomly selected students in the school. What is the data?
Select the correct answer below:
 the mean number of siblings for all students in the school
 the mean number of siblings for the randomly selected students
 the specific number of siblings for each randomly selected student
 all the students in the school
 the 200 randomly selected students
Answer
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Activity 3
Question
Patrick wants to estimate the percentage of parents who use cloth diapers. He asks a randomly selected group of 125 parents whether or not they use cloth diapers. What is the statistic?
 the 125 people surveyed
 the percentage of all parents who use cloth diapers
 the percentage of surveyed parents who use cloth diapers
 all parents who use cloth diapers
 specific “yes” or “no” responses to the survey
Answer
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Activity 4
Question
Sharon wants to estimate the percentage of parents who use cloth diapers. She asks a randomly selected group of 75 parents whether or not they use cloth diapers. What is the population?
Select the correct answer below:
 the 75 people surveyed
 specific “yes” or “no” responses to the survey
 the percentage of surveyed parents who use cloth diapers
 the percentage of all parents who use cloth diapers
 all parents
Answer
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Activity 5
Question
Douglas wants to estimate the percentage of homeowners that own at least one dog. He surveys 125 randomly selected homeowners to determine whether or not they own dogs. What is the statistic?
Select the correct answer below:
 the percentage of surveyed homeowners who own at least one dog
 specific responses to the survey
 the percentage of all homeowners who own at least one dog
 the 125 homeowners surveyed
 all homeowners
Answer
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Activity 6
Question
Raymond wants to estimate the percentage of parents who use cloth diapers. He asks a randomly selected group of 200 parents whether or not they use cloth diapers. What is the data?
Select the correct answer below:
 the percentage of all parents who use cloth diapers
 the 200 people surveyed
 all parents who use cloth diapers
 the percentage of surveyed parents who use cloth diapers
 specific “yes” or “no” responses to the survey
Answer
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Activity 7
Question
Thomas wants to estimate the mean height of students attending his college. He records the heights of 25 randomly selected students attending the college. What is the parameter?
Select the correct answer below:
 the heights of the randomly selected students
 the mean height of all students attending the college
 the mean height of the randomly selected students
 the 25 randomly selected students
 all the students attending the college
Answer
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Activity 8
Question
Raymond wants to estimate the percentage of parents who use cloth diapers. He asks a randomly selected group of 200 parents whether or not they use cloth diapers. What is the parameter?
Select the correct answer below:
 the percentage of surveyed parents who use cloth diapers
 the 200 people surveyed
 specific “yes” or “no” responses to the survey
 the number of parents
 the percentage of all parents who use cloth diapers
Answer
Access the entire solutions for this week (top graded solutions) by clicking the ‘Buy’ button.
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