Statistics homework
lease be sure to show more than just final answers as per the syllabus (I especially want to see procedure used for #3!!)
(1) These are the sales prices of recent home sales at a real estate office:
$475,000 $310,000 $350,000 $400,000 $475,000 $1,400,000 $340,000
Find the , , and the mode for the prices. In your opinion, which is the best
measure of central tendency for this data set? Why?
(2)
To celebrate Valentine’s Day, I chose this research study for you to analyze: Being in a Romantic Relationship Is Associated with Reduced Gray Matter Density in Striatum and Increased Subjective Happiness https://www.frontiersin.org/articles/10.3389/fpsyg.2016.01763/full
In the article, the authors study 36 young adults who are in a romantic relationship and 32 young adults who are not in a relationship. The researchers measured “happiness” using a survey instrument (more details in the article…) and they found that the young men and women in a relationship had a mean happiness level of 5.1 while the mean happiness level of those who were not in a relationship was 4.6. Identify the population, parameter, sample, and statistic in the article focusing on the part of the article I highlighted above. What type of data was gathered in this part of the study? Explain.
(3) Find the mean, median, and mode for the data on the number of sick days used for a group of employees below:
Number of sick days taken in the last year Frequency
0 12
1 30
2 39
3 25
4 15
5 8
7 3
9 1
b) Productivity ratios: Operating profit margin, profit margin, and asset turnov
Are you working on a similar assignment? Get a 100% unique paper on this topic that you can submit confidently TODAY! GET YOUR ANSWER TODAY! b) Productivity ratios: Operating profit margin, profit margin, and asset turnover c) Leverage ratios: Liabilities-to-equity ratio and times interest earned d) Profitability ratios: Return on equity and return on assets […]
