The city council is considering a law that would ban smoking in all public parks. A sample has been selected from the community and tested for support of the ordinance.   Age     Support for Ban Less than 40 40+   Supports Ban 145 (58.5%) 78 (31.6%) 223 (45.1%) Against Ban 103 (41.5%) 169 (68.4%) 272 (54.9%)   248 (100%) 247 (100%) 495 (100%) a. How many degrees of freedom are there in this table?   b. How many cells are in this table?   c. Based on the column percents, what is the strength and direction of the relationship between age and support for anti-smoking laws? How did you determine these results?

Q: In October 2017, the Gallup Poll asked a sample of 10281028 U.S. adults, "Are you in favor of the…

A: Margin of error: It is the vary of values below and higher than the sample data point in a…

Q: A county clerk wants to improve voter registration. He wants to send out reminders in the mail to…

A: Solution: Given information: n1= 625  Sample size of eligible voters in no reminders group n2= 625…

Q: In a study to estimate the proportion of smokers among the residents in a certain city and its…

A: To testH0:p1=p2H1:p1≠p2

Q: In a study of teen cell phone use, 117 high school students were observed as they drove out of their…

A: Solution Given out of 117 students drive their vehicles to school and 46 were taking on their…

Q: A local government official observes an increase in the number of individuals with cardiovascular…

A: Given data is0.5,0.7,0.9,1.1,1.2,1.3,1.4,2.0,2.3,2.4,2.7,3.0

Q: An oil company conducts a geological study that indicates that an exploratory oil well should have a…

A: Given that  n=5 , p=20%=0.20 , q=1-p=1-0.20=0.80 X~Binomial(n=5,p=0.20) p=probability of chance of…

Q: There is a looming crisis in universities and colleges across North America. In most places…

A: Given information: Use the filter function from the excel to determine the number of professors who…

Q: Who reports better self-rated health, married or unmarried individuals?  Group of answer choices…

A: Since a higher value of y means better self health and the coefficient of marital status is…

Q: A research report from an independent-measures study states that there are significant differences…

A: Determine the number of treatment conditions that were compared in the study. The number of…

Q: General Motors wants to know if a newly designed car has a different appeal to people under 30…

A:

Q: A union’s executive conducted a survey of its members to determine what the members felt the…

A: Let A be the random variable denoting that job security was an important issue.Let B be the random…

Q: A research report from an independent-measures study states that there are significant differences…

A: Given information- We have given a report from an independent- measures study. F(3, 48) = 2.95, p…

Q: USA TODAY† reported that "American women favor Kate Middleton as a shopping buddy over Michelle…

A: Experimental study: In experiment study, we assign people or groups of people and apply some…

Q: You are conducting a study to see if the proportion of voters who prefer the Democratic candidate is…

A: given information: let us consider x : potential voters prefers the democratic candidate.…

Q: You are a candidate for your state legislature, and you want to survey voter attitudes regarding…

A: Since we want to study voters’ attitude. The population must be the “state’s individual voters’…

Q: There appears to be a perception that the pandemic has changed the historical proportion of the…

A:

Q: It has been reported that some parents believe that the current education system of the country can…

A: Number of parents selected for sampling = 500 Number of parents agree that the current education…

Q: In 2007, the CDC reported that approximately 6.6 per 1000 (0.66%) children were affected with autism…

A:

Q: You are conducting a study to see if the proportion of voters who prefer the Democratic candidate is…

A: It is given that p hat is 0.7368 (= 70/95).

Q: In a recent Gallup poll, 507 adults age 18 and older were surveyed and 269 said they believed they…

A:

Q: 2. In a recent survey, a poll was conducted on twitter to know the stands of the youth on the…

A: For Kumepr3ko demonstration, Sample size, n2= 895 and X2= 100 We know that,  p2= X2/n2 = 100/895…

Q: The U.S. Department of Transportation, National Highway Traffic Safety Administration, reported that…

A: Given , Sample size = n = 54 Number of intoxicated driver = x = 35 Sample proportion = p^ = 3554 =…

Q: In order manufacturer is claiming that its new 2021 SUV model will have better gas mileage than the…

A: (a) The null and alternative hypothesis is, H0:u=30H1:u>30              (right tailed/one tailed)…

Q: In a recent election, 54% of all registered voters participated in voting. In a survey of 350…

A: Writing the sample population as a percentage i.e. 217 of 350:

Q: A county clerk wants to improve voter registration. He wants to send out reminders in the mail to…

A:

Q: recent poll reports that between 53% and 59% of voters will vote for president george in the next…

A: The confidence interval is (53%, 59%).

Q: A county clerk wants to improve voter registration. He wants to send out reminders in the mail to…

A:

Q: During a country wide investigation the incidence of TB was found to be 1%. In a college of 400…

A: In a college 5 were reported to be affected by the incidence of TB out of a strength of 400(=n1). ∴…

Q: 900 voters in the town and found that 70% of the residents favored construction. Using the data, a…

A: The provided information are:

Q: “In a recent survey, 63% of decided voters said they would vote for the mayor in the next election.…

A: The confidence interval for population proportion is given by; p^-ME,p^+ME where, ME=zα/2p^(1-p^)n

Q: According to the ACT Profile Report-National, the ACT composite scores are normally distributed with…

A: The provided sample mean is x̄  = 19.8 and the known population standard deviation is σ = 5.4,and…

Q: In recent years, approximately 55% of eligible voters take the time to vote in presidential…

A: Givensample size(n)=200x=128α=0.05

Q: Identify the population, parameter, sample and statistic. (b) State appropriate hypotheses for…

A: Given that the sample size is n = 100 Sample proportion = 24% Test is that if the percentage of male…

Q: The Institute of Education Sciences measures the high school dropout rate as the percentag of 16-…

A: Answer: A. Reject Ho; we can conclude that the high school dropout rate has decreased.

Q: A research group conducted an extensive survey of 3050 wage and salaried workers on issues ranging…

A: Solution: Let X be the number of wage and salaried workers responded to the question “what does…

Q: The Gallup organization periodically polls adults living in the U.S. about the issue of immigration.…

A: Given claim: IS there evidence for a real change in opinion among U.S adults between 2016 and 2018…

Q: During the 2004 election year, new polling results were reported daily. In an IBD/TIPP poll of 910…

A:

Q: You are conducting a study to see if the proportion of voters who prefer the Democratic candidate is…

A:

Q: A union’s executive conducted a survey of its members to determine what the members felt the…

A: Given that: Proportion of members who felt job security was an important issue:  PJob security=0.74…

Q: According to the ACT Profile Report-National, the ACT composite scores are normally distributed with…

A: The provided sample mean is x̄  = 19.8 and the known population standard deviation is σ = 5.4,and…

Q: A local government official observes an increase in the number of individuals with cardiovascular…

A:

Q: You are conducting a study to see if the proportion of voters who prefer the Democratic candidate is…

A:

Q: A research group conducted an extensive survey of 3195 wage and salaried workers on issues ranging…

A: Obtain the sample size of a preliminary estimate for p with 0.48 The formula of sample size is,…

Q: Researchers are interested in determining if there is a difference in the proportion of women who…

A: The given information presented in a table is as follows:

Q: The Institute of Education Sciences measures the high school dropout rate as the percentage of age…

A:

Q: According to the February 2008 Federal Trade Commission report on consumer fraud and identity theft,…

A:

Q: You are conducting a study to see if the proportion of voters who prefer the Democratic candidate is…

A: Given: n = 89, x = 52, α = 0.05, p = 0.59. Sample proportion: p^=xn=5289=0.5843

Q: 4. In a study to estimate the proportion of residents in a certain city and its suburbs who favor…

A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.