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
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A political scientist is studying the impact of a political debate between candidates for governor in a small western state. The scientist wants to evaluate the proportion of registered voters who switched their preference after viewing the debate. The following table contain the data from 75 registered voters:
Construct a 95% confidence interval for the change after the debate in the proportion of registered voters preferring candidate A.

A political scientist is studying the impact of a political debate between candidates for governor in a small western state. The scientist wants to evaluate the proportion of registered voters who switched their preference after viewing the debate. The following table contain the data from 75 registered voters:
Construct a 95% confidence interval for the change after the debate in the proportion of registered voters preferring candidate A.

- The table below contains data from a study of two airlines - Sunshine Airlines & Comfort Airlines - which fly from BWI to Shore City, FL. If one Airline is selected, find P (on time and Comfort Airlines). Number of Flights Arriving on Time Number of Flights Arriving Late Sunshine Airlines 33 5 Comfort Airlines 43 6arrow_forwardwhat is the median numbers of beads in a box?arrow_forwardTo determine if people's preference in dogs had changed in the recent years, organizers of a local dog show asked people who attended the show to indicate which breed was their favorite. This information was compiled by dog breed and gender of the people who responded. The table summarizes the responses. Female Male Total 73 59 132 49 47 96 Yorkshire Terrier Dachshund Golden Retriever Labrador Dalmatian 58 33 91 37 41 78 45 28 73 86 67 153 Other breeds Total 348 275 623 Does a person's gender appear to be independent of what dog breed they like most? Explain your answer. @ 2 W S X a BIUA-A-LEEE 12pt # 3 e d C C $ 4 r f V % 5 t 9 A 6 b y h & 7 n O u * 8 m O k Paragraph Y ( 9 ✓ O alt 1 ) O P 4 ctrl fr ? 1 D Next } U 1 ( backsarrow_forward
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- In a scatter plot, each A.individual is represented by two data points B. group mean is represented by two data points C.group mean is represented by a single point D.individual is represented by a single point Reset Selection 7,821 MAR étv AA w FIL 吕口。 00 F4 F6 F7 F8 F9 F10 F2 F3 F5 % & * 4 5 6 7 8 E Rarrow_forwardNational polls from October 2016 showed that preferences for the 2016 presidential election differed along gender lines. Poll results showed that a greater percentage of likely female voters supported Clinton/Kaine, while a greater percentage of likely male voters supported Trump/Pence. A summary of poll results are shown in the table below. Men Women Clinton/Kaine 0.44 0.49 Trump/Pence 0.47 0.43 Based on this data, answer the following questions. Assume each person selected is independent from one another. Round your answers to 3 decimal places.(a) If 10 women across the US are randomly selected, find the probability that 9 or more support Clinton/Kaine. (b) If 20 men across the US are randomly selected, find the probability that 16 or less support Trump/Pence. (c) If 260 women across the US are randomly selected, how many would you expect to support Clinton/Kaine? (d) If 240 men across the US are randomly selected, how many would you expect to support Trump/Pence?arrow_forwardPolitical parties want to know what groups of people support them. The General Social Survey (GSS) asked its 2014 sample, "Generally speaking, do you usually think of yourself as a Republican, Democrat, Independent, or what?" The GSS is essentially an SRS of American adults. The large two‑way table provided breaks down the responses by the highest degree the subject held. None High School Jr. College Bachelor Graduate Strong Democrat 53 198 23 81 64 Not strong Democrat 52 204 31 70 49 Independent, near Democrat 40 163 26 66 42 Independent 118 251 36 67 30 Independent, near Republican 24 136 19 45 2525 Not strong Republican 19 142 30 71 30 Strong Republican 18 131 15 53 28 Other party 5 31 3 15 8 Use the four‑step process and the full table of counts to analyze the differences in political party support among levels of education. The sample is so large that the differences are bound to be highly significant, but provide the chi‑square statistic and its P‑value…arrow_forward
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