Tech App 1 Week 3 Project - STAT 3001 Student Name: Date: Instructions: To complete this project, you will need the following materials: · USE STATDISK.COM · username XXXXXXXXXX · Password Fatty11!...

Week 3 Project - STAT 3001
Student Name:     
Date:    
Instructions: To complete this project, you will need the following materials:
· USE STATDISK.COM
· username Hartnett547@yahoo.com
· Password Fatty11!
Part I. Analyze Data
    Instructions
    Answers
    1. Open the file Car Measurements using menu option Datasets and then Elementary Stats, 13th Edition. This file contains information on a number of measurements related to cars. How many observations are there in this file? Look at the number of rows of data and the number of variables.
    21 observations
10 Variables
    2-5 Analyze the data in this file and complete the following table, indicating for each variable what type of data it represents.
    Variable
    Qualitative/ Quantitative
    Discrete/ Continuous/ Neither
    Level of Measurement
    
    Size
    Qualitative
    Discrete
    Small-medium-large
    
    Braking (distance)
    Quantitative
    Continuous
    feet
    
    City (MPG)
    Quantitative
    Continuous
    mile_per_gallon
    
    Car
    Qualitative
    Discrete
    Name
    6. Would you consider this data to represent a sample or a population? Why?
    I would consider this data as a sample. Because it has only 21 observations, which is low.
Part II. ScatterPlots
    7. Create a scatterplot for the data in the Length (inches) and Braking distance (feet) columns. Paste it here. You may need to resize the plot once it is in this file.
    
    8. Explain the visual relationship between Length and Braking distance. Is the relationship positive or negative, based on the scatter of points around the line, is the correlation weak, moderate or strong?
    The relationship between length and braking distance is significantly moderate and positive.
    9. Create a scatterplot for the data in Displacement (liters) and Highway (MPG) columns. Paste it here. You may need to resize the plot once it is in this file.
    
    10. Explain the visual relationship between Displacement and Highway MPG. Is the relationship positive or negative, based on the scatter of points around the line, is the correlation weak, moderate or strong?
    The relationship between Displacement and highway MPG is significantly negative.
Strong reletionaship.
Part III. Correlation
    11.Using Statdisk, calculate the linear correlation between the...