LAB-CHAPTER1Larson S21 chris wells
docx
keyboard_arrow_up
School
Pellissippi State Community College *
*We aren’t endorsed by this school
Course
1530
Subject
Mathematics
Date
Feb 20, 2024
Type
docx
Pages
2
Uploaded by MagistrateFreedomHedgehog29
CHAPTER 1
Chapter 1
Name: chriswells_________________
MATH1530
______ out of 10
1. A professor wishes to conduct a survey regarding student opinions on the importance of statistics in everyday life. The professor asks the registrar to randomly select a group of 2000 students. Each of these students is sent the survey which has 10 statements. The students are instructed to respond to each statement with one of the following: Strongly agree, Agree, Neither agree nor disagree, Disagree, or Strongly disagree. a)
Determine whether this study corresponds to an observational study or an experiment.
This study is an observational study
b)
Are these responses qualitative or quantitative?
quantitative
c)
Determine which of the four levels of measurement is most appropriate for these responses.
Ordinal because you can rank if someone’s agrees or disagrees
d)
Identify the population of this study.
The population of this study would be all student
e)
Identify the sample of this study.
The sample would be the 2000 students randomly selected f)
Identify the sampling method.
Random Sample
g)
Is this sample likely to be representative of the population? Explain your answer.
It depends on what the population of students is. If the sample consist of most of the population
of students that we can infer that the sample represents the population. We can use the students answers to determine how they feel about the importance of statics in everyday life as a representation of the sample size.
2. Identify which of these types of sampling is used: random, systematic, convenience, stratified, or cluster.
A drug company studies the effects of a new drug by creating several study groups partitioned by both age and gender.
stratified
After a hurricane, the disaster area is divided into 100 equal grids. Twenty grids are randomly selected and every occupied household in each of these grids is interviewed about relief efforts.
clustered
CHAPTER 1
Questioning university students as they leave a frat party, a researcher asks 237 students about their study habits.
convenience
Every tenth person is line at a movie theatre is offered a gift card for taking a short survey.
systematic
3. StatCrunch
Watch the video about “getting started” with StatCrunch: https://mediaplayer.pearsoncmg.com/assets/statcrunch_02
Click StatCrunch in the topics on the left of your MyStatLab course. Now click on “data sets from your textbook” and then “Chapter 2” and finally open the data set labeled “Super Bowl”. List below the first 10 numbers in the data list.
1.35
2.33
3.16
4.23
5.16
6.24
7.14
8.24
9.16
10.21
What level of measurement does this data represent?
Scores of the team that won the super bowl
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
- Access to all documents
- Unlimited textbook solutions
- 24/7 expert homework help