Complete 6 Short Assignments

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some assignments are attached…separate each assignment

Assignment 1:

Week 7 Assignment

Question 1

Assume you have noted the following prices for paperback books and the number of pages that each book contains.
Develop a least-squares estimated regression line.

  1. Compute the coefficient of determination and explain its meaning.
  2. Compute the correlation coefficient between the price and the number of pages. Test to see if x and y are related. Use α = 0.10.

Question 2

The following data represent a company’s yearly sales volume and its advertising expenditure over a period of 8 years.

  1. Develop a scatter diagram of sales versus advertising and explain what it shows regarding the relationship between sales and advertising.
  2. Use the method of least squares to compute an estimated regression line between sales and advertising.
  3. If the company’s advertising expenditure is $400,000, what are the predicted sales? Give the answer in dollars.
  4. What does the slope of the estimated regression line indicate?

Social Responsibility of Business

  • Research a Fortune 500 company. Examine the company’s social responsibility policies. How does the company demonstrate its duty? For example, you may choose areas such as labor practices, environmental and human rights issues or special interest (e.g., animal rights, women’s rights, technology transfer, philanthropy, etc.) to describe how a company demonstrates its duty.

The requirements below must be met for your paper to be accepted and graded:

  • Write between 750 – 1,250 words (approximately 3 – 5 pages) using Microsoft Word in APA style, see example below.
  • Use font size 12, 1” margins and double spacing.
  • Include cover page and reference page.
  • At least 80% of your paper must be original content/writing.
  • No more than 20% of your content/information may come from references.
  • Use at least three references from outside the course material, one reference must be from EBSCOhost. Text book, lectures, and other materials in the course may be used, but are not counted toward the three reference requirement.
  • Cite all reference material (data, dates, graphs, quotes, paraphrased words, values, etc.) in the paper and list on a reference page in APA style.
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