Test whether the data provide sufficient evidence to conclude that the rows and columns are dependent at α = 0.05 .

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Answer 1

Question

Chapter 13, Problem 49LM

a.

To determine

Test whether the data provide sufficient evidence to conclude that the rows and columns are dependent at α=0.05.

b.

To determine

Check whether the analysis change if the row totals were fixed before the data were collected.

c.

To determine

Explain whether the assumptions required for the analysis to be valid differ according to whether the row ( or column) totals are fixed.

d.

To determine

Convert the table entries to percentages, using each column total as a base and calculating each row response as a percentage of the corresponding column total.

Find the row totals and convert them to percentages of all 250 observations.

e.

To determine

Draw a bar graph with row 1 on the vertical axis and column number on the horizontal axis.

Draw the row 1 total percentage as a horizontal line on the graph.

Check whether the graph support the result of the test conducted in part a.

f.

To determine

Draw a bar graph with row 2 on the vertical axis and column number on the horizontal axis.

Draw the row 2 total percentage as a horizontal lie on the graph.

Check whether the graph support the result of the test conducted in part a.

g.

To determine

Draw a bar graph with row 3 on the vertical axis and column number on the horizontal axis.

Draw the row 3 total percentage as a horizontal lie on the graph.

Check whether the graph support the result of the test conducted in part a.

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Students have asked these similar questions

Hi, I need to make sure I have drafted a thorough analysis, so please answer the following questions. Based on the data in the attached image, develop a regression model to forecast the average sales of football magazines for each of the seven home games in the upcoming season (Year 10). That is, you should construct a single regression model and use it to estimate the average demand for the seven home games in Year 10. In addition to the variables provided, you may create new variables based on these variables or based on observations of your analysis. Be sure to provide a thorough analysis of your final model (residual diagnostics) and provide assessments of its accuracy. What insights are available based on your regression model?

I want to make sure that I included all possible variables and observations. There is a considerable amount of data in the images below, but not all of it may be useful for your purposes. Are there variables contained in the file that you would exclude from a forecast model to determine football magazine sales in Year 10? If so, why? Are there particular observations of football magazine sales from previous years that you would exclude from your forecasting model? If so, why?

Stat questions

Answer 2

Question

Chapter 13, Problem 49LM

a.

To determine

Test whether the data provide sufficient evidence to conclude that the rows and columns are dependent at α=0.05.

b.

To determine

Check whether the analysis change if the row totals were fixed before the data were collected.

c.

To determine

Explain whether the assumptions required for the analysis to be valid differ according to whether the row ( or column) totals are fixed.

d.

To determine

Convert the table entries to percentages, using each column total as a base and calculating each row response as a percentage of the corresponding column total.

Find the row totals and convert them to percentages of all 250 observations.

e.

To determine

Draw a bar graph with row 1 on the vertical axis and column number on the horizontal axis.

Draw the row 1 total percentage as a horizontal line on the graph.

Check whether the graph support the result of the test conducted in part a.

f.

To determine

Draw a bar graph with row 2 on the vertical axis and column number on the horizontal axis.

Draw the row 2 total percentage as a horizontal lie on the graph.

Check whether the graph support the result of the test conducted in part a.

g.

To determine

Draw a bar graph with row 3 on the vertical axis and column number on the horizontal axis.

Draw the row 3 total percentage as a horizontal lie on the graph.

Check whether the graph support the result of the test conducted in part a.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 13, Problem 49LM

a.

To determine

Test whether the data provide sufficient evidence to conclude that the rows and columns are dependent at α=0.05.

b.

To determine

Check whether the analysis change if the row totals were fixed before the data were collected.

c.

To determine

Explain whether the assumptions required for the analysis to be valid differ according to whether the row ( or column) totals are fixed.

d.

To determine

Convert the table entries to percentages, using each column total as a base and calculating each row response as a percentage of the corresponding column total.

Find the row totals and convert them to percentages of all 250 observations.

e.

To determine

Draw a bar graph with row 1 on the vertical axis and column number on the horizontal axis.

Draw the row 1 total percentage as a horizontal line on the graph.

Check whether the graph support the result of the test conducted in part a.

f.

To determine

Draw a bar graph with row 2 on the vertical axis and column number on the horizontal axis.

Draw the row 2 total percentage as a horizontal lie on the graph.

Check whether the graph support the result of the test conducted in part a.

g.

To determine

Draw a bar graph with row 3 on the vertical axis and column number on the horizontal axis.

Draw the row 3 total percentage as a horizontal lie on the graph.

Check whether the graph support the result of the test conducted in part a.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 13, Problem 49LM

a.

To determine

Test whether the data provide sufficient evidence to conclude that the rows and columns are dependent at α=0.05.

b.

To determine

Check whether the analysis change if the row totals were fixed before the data were collected.

c.

To determine

Explain whether the assumptions required for the analysis to be valid differ according to whether the row ( or column) totals are fixed.

d.

To determine

Convert the table entries to percentages, using each column total as a base and calculating each row response as a percentage of the corresponding column total.

Find the row totals and convert them to percentages of all 250 observations.

e.

To determine

Draw a bar graph with row 1 on the vertical axis and column number on the horizontal axis.

Draw the row 1 total percentage as a horizontal line on the graph.

Check whether the graph support the result of the test conducted in part a.

f.

To determine

Draw a bar graph with row 2 on the vertical axis and column number on the horizontal axis.

Draw the row 2 total percentage as a horizontal lie on the graph.

Check whether the graph support the result of the test conducted in part a.

g.

To determine

Draw a bar graph with row 3 on the vertical axis and column number on the horizontal axis.

Draw the row 3 total percentage as a horizontal lie on the graph.

Check whether the graph support the result of the test conducted in part a.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 5

Chapter 13, Problem 49LM

a.

To determine

Test whether the data provide sufficient evidence to conclude that the rows and columns are dependent at α=0.05.

b.

To determine

Check whether the analysis change if the row totals were fixed before the data were collected.

c.

To determine

Explain whether the assumptions required for the analysis to be valid differ according to whether the row ( or column) totals are fixed.

d.

To determine

Convert the table entries to percentages, using each column total as a base and calculating each row response as a percentage of the corresponding column total.

Find the row totals and convert them to percentages of all 250 observations.

e.

To determine

Draw a bar graph with row 1 on the vertical axis and column number on the horizontal axis.

Draw the row 1 total percentage as a horizontal line on the graph.

Check whether the graph support the result of the test conducted in part a.

f.

To determine

Draw a bar graph with row 2 on the vertical axis and column number on the horizontal axis.

Draw the row 2 total percentage as a horizontal lie on the graph.

Check whether the graph support the result of the test conducted in part a.

g.

To determine

Draw a bar graph with row 3 on the vertical axis and column number on the horizontal axis.

Draw the row 3 total percentage as a horizontal lie on the graph.

Check whether the graph support the result of the test conducted in part a.

Answer 6

Chapter 13, Problem 49LM

a.

To determine

Test whether the data provide sufficient evidence to conclude that the rows and columns are dependent at α=0.05.

Answer 7

Chapter 13, Problem 49LM

a.

To determine

Test whether the data provide sufficient evidence to conclude that the rows and columns are dependent at α=0.05.

Answer 8

b.

To determine

Check whether the analysis change if the row totals were fixed before the data were collected.

Answer 9

b.

To determine

Check whether the analysis change if the row totals were fixed before the data were collected.

Answer 10

c.

To determine

Explain whether the assumptions required for the analysis to be valid differ according to whether the row ( or column) totals are fixed.

Answer 11

c.

To determine

Explain whether the assumptions required for the analysis to be valid differ according to whether the row ( or column) totals are fixed.

Answer 12

d.

To determine

Convert the table entries to percentages, using each column total as a base and calculating each row response as a percentage of the corresponding column total.

Find the row totals and convert them to percentages of all 250 observations.

Answer 13

d.

To determine

Convert the table entries to percentages, using each column total as a base and calculating each row response as a percentage of the corresponding column total.

Find the row totals and convert them to percentages of all 250 observations.

Answer 14

e.

To determine

Draw a bar graph with row 1 on the vertical axis and column number on the horizontal axis.

Draw the row 1 total percentage as a horizontal line on the graph.

Check whether the graph support the result of the test conducted in part a.

Answer 15

e.

To determine

Draw a bar graph with row 1 on the vertical axis and column number on the horizontal axis.

Draw the row 1 total percentage as a horizontal line on the graph.

Check whether the graph support the result of the test conducted in part a.

Answer 16

f.

To determine

Draw a bar graph with row 2 on the vertical axis and column number on the horizontal axis.

Draw the row 2 total percentage as a horizontal lie on the graph.

Check whether the graph support the result of the test conducted in part a.

Answer 17

f.

To determine

Draw a bar graph with row 2 on the vertical axis and column number on the horizontal axis.

Draw the row 2 total percentage as a horizontal lie on the graph.

Check whether the graph support the result of the test conducted in part a.

Answer 18

g.

To determine

Draw a bar graph with row 3 on the vertical axis and column number on the horizontal axis.

Draw the row 3 total percentage as a horizontal lie on the graph.

Check whether the graph support the result of the test conducted in part a.

Answer 19

g.

To determine

Draw a bar graph with row 3 on the vertical axis and column number on the horizontal axis.

Draw the row 3 total percentage as a horizontal lie on the graph.

Check whether the graph support the result of the test conducted in part a.

Answer 20

Expert Solution & Answer

Answer 21

Expert Solution & Answer

Answer 22

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Answer 23

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Test whether the data provide sufficient evidence to conclude that the rows and columns are dependent at α = 0.05 .

Concept explainers

Videos

Test whether the data provide sufficient evidence to conclude that the rows and columns are dependent at α=0.05.

Check whether the analysis change if the row totals were fixed before the data were collected.

Explain whether the assumptions required for the analysis to be valid differ according to whether the row ( or column) totals are fixed.

Convert the table entries to percentages, using each column total as a base and calculating each row response as a percentage of the corresponding column total.

Find the row totals and convert them to percentages of all 250 observations.

Draw a bar graph with row 1 on the vertical axis and column number on the horizontal axis.

Draw the row 1 total percentage as a horizontal line on the graph.

Check whether the graph support the result of the test conducted in part a.

Draw a bar graph with row 2 on the vertical axis and column number on the horizontal axis.

Draw the row 2 total percentage as a horizontal lie on the graph.

Check whether the graph support the result of the test conducted in part a.

Draw a bar graph with row 3 on the vertical axis and column number on the horizontal axis.

Draw the row 3 total percentage as a horizontal lie on the graph.

Check whether the graph support the result of the test conducted in part a.

Want to see the full answer?

Chapter 13 Solutions

Test whether the data provide sufficient evidence to conclude that the rows and columns are dependent at α = 0.05 .

Concept explainers

Videos

Test whether the data provide sufficient evidence to conclude that the rows and columns are dependent at α=0.05.

Check whether the analysis change if the row totals were fixed before the data were collected.

Explain whether the assumptions required for the analysis to be valid differ according to whether the row ( or column) totals are fixed.

Convert the table entries to percentages, using each column total as a base and calculating each row response as a percentage of the corresponding column total. Find the row totals and convert them to percentages of all 250 observations.

Draw a bar graph with row 1 on the vertical axis and column number on the horizontal axis. Draw the row 1 total percentage as a horizontal line on the graph. Check whether the graph support the result of the test conducted in part a.

Draw a bar graph with row 2 on the vertical axis and column number on the horizontal axis. Draw the row 2 total percentage as a horizontal lie on the graph. Check whether the graph support the result of the test conducted in part a.

Draw a bar graph with row 3 on the vertical axis and column number on the horizontal axis. Draw the row 3 total percentage as a horizontal lie on the graph. Check whether the graph support the result of the test conducted in part a.

Want to see the full answer?

Chapter 13 Solutions

Convert the table entries to percentages, using each column total as a base and calculating each row response as a percentage of the corresponding column total.

Find the row totals and convert them to percentages of all 250 observations.

Draw a bar graph with row 1 on the vertical axis and column number on the horizontal axis.

Draw the row 1 total percentage as a horizontal line on the graph.

Check whether the graph support the result of the test conducted in part a.

Draw a bar graph with row 2 on the vertical axis and column number on the horizontal axis.

Draw the row 2 total percentage as a horizontal lie on the graph.

Check whether the graph support the result of the test conducted in part a.

Draw a bar graph with row 3 on the vertical axis and column number on the horizontal axis.

Draw the row 3 total percentage as a horizontal lie on the graph.

Check whether the graph support the result of the test conducted in part a.