Statistics, statistics homework help

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ENGR 390 - Applied Engineering Mathematics Statistics in the News This article was taken from the CNN.com website on September 5, 2006 and presents some interesting statistical information. Although everyone has a unique political perspective, this assignment is intended to serve as an "unbiased" exercise utilizing publicly available articles. Your political views and interpretations will not affect your score. Construct the following: 1. Create a histogram of the poll data for the PREVIOUS months. Clearly label the axes on this plot and include any additional information (title, scales, legend, etc.). 2. Create a histogram of the poll data for the CURRENT month. Clearly label the axes on this plot and include any additional information (title, scales, legend, etc.). 3. Create a comparison plot of the poll data for #1 and #2 above (printing Previous and Current data on the same plot), with previous and current months shown adjacent to each other. (Tip: It may be easier to treat each topic in its own separate plot). Answer the following questions: With regards to the following, describe potential statistical problems in this article. A few ideas to include 4 in your answer: a. Size of the categories / intervals b. Use of qualitative descriptors C. Etc. Was the data provided by the news article complete from a statistical point of view? Explain why or why not? 6. How can the same data be used to present a counter-argument? If you feel the article is supporting one idea or opinion, how could the same data be used to support the opposite viewpoint? Voters are anti-incumbent and angry, new poll finds From CNN.com 9/5/06 WASHINGTON (CNN) - Most Americans are angry about "something" when it comes to how the country is run, and they are more likely than in previous years to vote for a challenger this November, a new poll suggests. A majority of Americans surveyed -- and a higher percentage than recorded during the same time last year -- said things in the United States are going "badly." Among this year's respondents, 29 percent said "pretty badly" and 25 percent -- up from 15 percent a month ago - answered "very badly." By comparison, 37 percent described the way things are going as "fairly well," and 9 percent answered "very well." Of these people, 76 percent said there was "something" to be angry about in the country today. By comparison, 59 percent felt that way when polled in February Only 21 percent said they were "generally content" in the latest poll. Nine percent said they considered the economy to be "very good," a number unchanged from a June CNN poll. But the number who considered conditions "somewhat good" dropped from 42 percent to 35 percent over the same period. The number of respondents who consider the economy "somewhat poor" rose from 31 percent to 34 percent, and the number who called the economy "very poor" jumped from 16 percent to 22 percent. A majority -- 55 percent -- said they are more likely to back a challenger in races on this year's ballot. Such anti-incumbent sentiment is higher than the 48 percent recorded as "pro-challenger" in a similar survey in 1994, when the GOP took control of both houses of Congress. Nonetheless, 48 percent said that, if most of the present members of Congress were replaced with new members, there would be no difference. By contrast, 42 percent said such a scenario would change Congress for the better, and 7 percent said it would change Congress for the worse. The results, based on a half-sample of 1,004 adult Americans polled by Opinion Research Corporation for CNN Wednesday through Saturday have a margin of sampling error of plus or minus 4.5 percentage points. More than 60 percent of those surveyed said government policies need either major changes or a complete overhaul, while 30 percent said minor changes were needed. Only 7 percent said no change is necessary. The economy topped the list of respondents' concerns, with 28 percent calling it the most important issue when deciding how to cast their ballots. Coming second was Iraq at 25 percent, followed by terrorism (18 percent), moral issues (15 percent) and immigration (14 percent). Democrats lead Republicans by a 10-point margin, 53 to 43 percent, among likely voters asked which party's congressional candidate they would support in November, and Democrats held a 56-40 lead on the same question among registered voters. The survey has a sampling error of 3 percentage points among the full group and 4 percentage points among likely voters. Nearly half of the respondents -- 49 percent -- said they considered the GOP the party of strong leadership. But 56 percent said they considered the Democrats the party of change, with 49 percent considering them the more forward-looking party.
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Explanation & Answer

Hey please see both files. The actual answers are in CNN Polls.docx, other excel file is for your reference. Thank You. Kindly rate the answer soon took lot of effort :)

Performance Comparision
40

35

30

%

25

Present month

20

Previous Months

15

10

5

0
pretty badly

very badly

fairly well

very well

Performance of USA
40

35

30

25

% 20

Present month

15

10

5

0
pretty badly

very badly

fairly well

very well

Contentment
80

70

60

%

50

40

Present month

30

20

10

0
something to be angry

Generally Content

Contentment Comparision
80

70

60

%

50

something to be angry

40

Generally Content

30

20

10

0
Present month

Previous Months

Perception of Economy
45

40

35

30

25
Present month

%

Previous Months

20

15

10

5

0
very good

somewhat good

somewhat poor

very poor

Perception of Economy present month
40

35

30

%

25

20

Present month

15

10

5

0
very good

somewhat good

somewhat poor

very poor

Economy Perception previous months
45

40

35

% of total respondents

30

25
Previous Months

20

15

10

5

0
very good

somewhat good

somewhat poor

very poor

Challenger Favourability
56

54

52

50

Present month

48

46

44
pro challenger

against challenger

Challenger Favourability
54

52

50

48

1994 Survey
46

44

42

40
pro challenger

against challenger

Challenger Favourability Comparision
60

50

40

pro challenger

30

against challenger

20

10

...


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