Three Statistics Questions

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Mathematics

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- Complete questions 2, 6 and 11 (attached).

- Please show the work in detail in a way that I can understand how you solved each problem.

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Assignment: Chapter 2 Assignment (Practice) Assignment Score: 1.04% Save Questions Exercise 02.05 Submit Assignment Question 2 of 12 1. Check My Work 2. 3. eBook 4. In alphabetical order, the six most common last names in the United States are Brown, 5. Johnson, Jones, Smith, Miller, and Williams (The World Almanac, 2012). Assume that a sample of 6. individuals with one of these last names provided the following data. Click on the datafile logo to reference the data. 7. 8. 9. 10. 11. 12. Summarize the data by constructing the following items. a. Fill in the frequency and the relative frequency (to 2 decimals) and percent frequency values below. Name Brown Johnson Jones Miller Smith Williams (Total) Frequency Relative Percent Frequency frequency b. Which of the following three bar graphs accurately represents the data? 1. 2. 3. 1 c. Select the correct pie chart from the following. 1. 2. 2. 3. 1 d. Based on these data, what are the three most common last names? Smith, Johnson, and Williams Hide Feedback Partially Correct Check My Work Icon Key Exercise 02.05 Question 2 of 12 Save Submit Assignment Assignment: Chapter 2 Assignment (Practice) Assignment Score: 11.75% Save Questions Exercise 02.31 Submit Assignment Question 6 of 12 1. Check My Work 2. 3. eBook 4. Recently, management at Oak Tree Golf Course received a few complaints about the 5. condition of the greens. Several players complained that the greens are too fast. Rather than react to the comments of just a few, the Golf Association conducted a survey of 6. male and 7. Excel File: data02-31.xlsx female golfers. The survey results are summarized here. 8. 9. 10. 11. a. Complete the crosstabulation shown below. 12. Green Condition Gender Too Fast Fine Total Male Female Total Which group shows the highest percentage saying that the greens are too fast? Males, at 55% b. Refer to the initial crosstabulations. For those players with low handicaps (better players), which group (male or female) shows the highest percentage saying the greens are too fast? For the low handicappers, the men have a higher percentage who think the greens are too fast. c. Refer to the initial crosstabulations. For those players with higher handicaps, which group (male or female) shows the highest percentage saying the greens are too fast? For the high handicappers, the men have a higher percentage who think the greens are too fast. d. At each handicap level, how does the percentage of women who think the greens are too fast compare to the percentage of men who feel the same? It is smaller than that of the men When the crosstabulations are aggregated across handicap level, do you still conclude the same thing when comparing the percentage of women who complain that the greens are too fast with the percentage of the men who feel the same? No Note: This exercise is an example of Simpson's Paradox. Hide Feedback Partially Correct Check My Work Icon Key Exercise 02.31 Question 6 of 12 Save Submit Assignment Assignment: Chapter 2 Assignment (Practice) Assignment Score: 11.75% Save Questions Exercise 02.47 Submit Assignment Question 11 of 12 1. Check My Work 2. 3. eBook 4. A start-up company's ability to gain funding is a key to success. The amount of funds raised (in mil 5. hot start-up companies follow (source: Wall Street Journal, March 10, 2011). Click on the datafile l data. 6. 7. 8. 9. 10. 11. 12. a. Construct a stem-and-leaf display. If your answer is zero enter "0". b. Comment on the display. The input in the box below will not be graded, but may be reviewed and considered by your instruc Check My Work Icon Key Exercise 02.47 Question 11 of 12 Save Submit Assignment
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Explanation & Answer

Attached.

Name
Frequency Relative Frequency = (Frequency/Total Frequency)
Brown
7 (7/50) = 0.14
Johnson
10 (10/50) = 0.20
Jones
7 (7/50) = 0.14
Miller
6 (6/50) = 0.12
Smith
12 (12/50) = 0.24
Williams
8 (8/50) = 0.16
Tota...


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