This module provides a lab of Linear Regression and Correlation as a part of Collaborative Statistics collection (col10522) by Barbara Illowsky and Susan Dean.Labs changed to incorporate mini-tabs.
Class Time:
Name:
Student learning outcomes:
The student will calculate and construct the line of best fit between two variables.
The student will evaluate the relationship between two variables to determine if that relationship is significant.
Collect the data
Survey 10 textbooks. Collect bivariate data (number of pages in a textbook, the cost of the
textbook).
Complete the table.
Number of pages
Cost of textbook
Which variable should be the dependent variable and which should be the independent
variable? Why?
Graph “number of pages” vs. “cost.” Plot the points on the graph. Label both axes with
words. Scale both axes.
Does there appear to be a relationship between the size of the book and it's cost?
Analyze the data
Enter your data into your MiniTab.
Record the following information.
correlation coefficient = ___________
p-value = ___________
Is three significant correlation to use a regression line?
Calculate the following:
A
=
B
=
C
=
D
equation:
=
Obtain the graph using Minitab. Sketch the regression line below.
Supply an answer for the following senarios:
A
For a textbook with 400 pages, predict the cost:
B
For a textbook with 600 pages, predict the cost:
Discussion questions
Answer each with 1-3 complete sentences.
A
Does the line seem to fit the data?
Why?
B
What does the correlation imply about the relationship between the number of pages
and the cost?
Are there any outliers? If so, which point(s) is an outlier?
Should the outlier, if it exists, be removed? Why or why not?
the study of living organisms and their interactions with one another and their environment.
Wine
discuss the biological phenomenon and provide pieces of evidence to show that it was responsible for the formation of eukaryotic organelles in an essay form
advantage of electronic microscope is easily and clearly while disadvantage is dangerous because its electronic. advantage of light microscope is savely and naturally by sun while disadvantage is not easily,means its not sharp and not clear
Abdullahi
cell theory state that every organisms composed of one or more cell,cell is the basic unit of life
Abdullahi
is like gone fail us
DENG
cells is the basic structure and functions of all living things
A scanning electron microscope (SEM) is ideal for situations requiring high-resolution imaging of surfaces. It is commonly used in materials science, biology, and geology to examine the topography and composition of samples at a nanoscale level. SEM is particularly useful for studying fine details,
