This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The correlation between a family's weekly income and the amount they spend on restaurant meals is ... (Read 434 times)

Mimi

  • Hero Member
  • *****
  • Posts: 542
on: Aug 30, 2019

Question 1

A consumer group collected information on HDTVs.  They created a linear model to estimate the cost of an HDTV (in $) based on the screen size (in inches).  Which is the most likely value of the slope of the line of best fit?
◦ 70
◦ 7
◦ 700
◦ 0.70
◦ 7000

Question 2

The correlation between a family's weekly income and the amount they spend on restaurant meals is found to be r = 0.30. Which must be true?
I.   Families tend to spend about 30% of their incomes in restaurants.
II.  In general, the higher the income, the more the family spends in restaurants.
III. The line of best fit passes through 30% of the (income, restaurant$) data points.
◦ I, II, and III
◦ III only
◦ II and III only
◦ I only
◦ II only
Stats: Modeling the World ¦ Bock, Velleman, De Veaux ¦ 4th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by Mimi on Aug 30, 2019

Bigfoot1984

  • Sr. Member
  • ****
  • Posts: 321
Reply #1 on: Aug 30, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 29% of students answer this correctly


Mimi

  • Member
  • Posts: 542
Reply 2 on: Aug 30, 2019
Excellent

dawsa925

  • Member
  • Posts: 326
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

Did you know?

The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

Various members of the Sciuridae family Various members of the Sciuridae family
Platystictidae is a family of damselflies, commonly known as shadowdamsels. Platystictidae is a family of damselflies, commonly known as shadowdamsels.
Water amount needed to grow crops Water amount needed to grow crops
Changes in Time Spent with Family Members Changes in Time Spent with Family Members
Relationship between Income Inequality and Sociopolitical Instability Relationship between Income Inequality and Sociopolitical Instability
Percentage of higher-income Canadian households Percentage of higher-income Canadian households
Video: Role of complement proteins

For a complete list of videos, visit our video library