A political scientist claims that the president’s approval rating in Ogun State is lower than the president’s approval rating in Bayelsa State. To prove his point, he conducted surveys in the two states. Of the 874 individuals polled in Ogun state, 350 favored the president, and of the 1024 individuals polled in Bayelsa state, 438 favored the president. Test the political scientists claim at the 5% level of significance. The p-value of the test is

Q: Assume that adults were randomly selected for a poll. They were asked if they "favor or oppose using…

A: Given that, The sample proportion of subjects who respond in favor is, Null and alternative…

Q: According to a survey of 5041 Star Trek fans conducted in 2010, 2873 are females. Use this data to…

A: Null Hypothesis: H0: p<=0.5 Alternative Hypothesis: H1:p>0.5 Given that x=2873 and n=5041…

Q: A survey asked 827 randomly sampled registered voters in California to select a response best…

A: For the above analysis: Null hypothesis: There is no difference in support of drilling b/w those who…

Q: A new soft drink is being market tested. A sample of 400 individuals participated in the taste test…

A: p=33%, n=400, x=120

Q: A recent drug survey showed an increase in the use of drugs and alcohol among local high school…

A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…

Q: Suppose the p-value for a two-tailed test equals 0.0463 and the level of significance equals 2.5%.…

A: If p-value > significance level, then the we fail to reject null Hypothesis If p-value <…

Q: The admisnistrators of Rowan university wants to know more about the knowledge of students regarding…

A: Given information Sample size(n) = 35 Sample mean = 58 Standard error = 3.2 Significance level (α) =…

Q: In 2010, the Pew Research Center questioned 717 adults in the U.S. to estimate the proportion of the…

A: (a) Sample - The 717 adults in the U.S. surveyed (b) Parameter - The 73% in favor of using marijuana…

Q: new soft drink is being market tested. A sample of 356 individuals participated in the taste test…

A: Formula : Test statistic :

Q: an article in Forbes magazine reported that 73% of fortune 500 companies have Twitter accounts. A…

A: The provided information are:

Q: Nationally, 60% of American own American cars, 26% of Americans own Asian cars, and the remaing…

A: Consider that pi’s are the proportion of the Americans own American cars, own Asian cars, and own…

Q: Use the Plan, Solve and Conclude steps in answering this question

A:

Q: ents, the proportion p who say they're interested in their congressional district's election results…

A: Answer  X =196 n =270 alpha =0.01 This is one -tailed test [or] Right -tailed test.

Q: Nationally, 63% of American own American cars, 26% of Americans own Asian cars, and the remaing…

A: To test if there is a discrepancy between theoretical proportions (i.e., the true proportions of…

Q: A marketing survey involves product recognition in New York and California. Of 37 New Yorkers…

A: In a survey in New York and California, 37 out of 197 knew the product in New York 99 out of 305…

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

A: In 2009, high school dropout rate between 16-24 years olds was 8.1% . A pooling company took a…

Q: Do the states that voted for McCain have a different average percent of heavy drinkers than the…

A: 1. A study is conducted to determine whether McCain states and Obama states have different average…

Q: Professor Gatis Skride is hired by the Weightlifting Federation of Jeekabpils to study the body…

A: Given Information:  The mean weight is 219.05 pounds The median weight is 219 pounds The mode weight…

Q: In a clinical trial among 5838 patients treated with some drug, 158 developed an adverse reaction of…

A:

Q: A survey asked 827 randomly sampled registered voters in California to select a response best…

A: The data for responses of the graduated college and didn't graduate college respondents is given.…

Q: A balance used in an entomology lab to weigh grasshoppers is quite old and has been used for…

A:

Q: Thirty-three percent of all Americans drink bottled water more than once a week (Natural resources…

A: Note: Hi there! Thank you for posting the question. Unfortunately in the sub-part(b), some required…

Q: Most adults would erase all of their personal information online if they could. A software firm…

A:

Q: A poll asked college students in 2016 and again in 2017 whether they believed the First Amendment…

A: It is given that-Number of students surveyed in 2016:People who believed the claim: Number of…

Q: In the Star and Tribune newspaper, there is an article entitled “1 in 8 school buses fail tests."…

A: Given information: Sample of 200 buses and find that 20 buses fail the safety inspection. Let us…

Q: A study showed that 62% of supermarket shoppers believe supermarket brands to be as good as national…

A: claim is that the percentage of supermarket shoppers who believe that the supermarket ketchup was as…

Q: The admisnistrators of Rowan university wants to know more about the knowledge of students regarding…

A: State the given values. Now, we know that

Q: ged? In on, 18% 2012, a school chelor's ached?

A: See hand written solution ,

Q: A sociologist wishes to conduct a poll to estimate the percentage of Americans who favor affirmative…

A: From the given information, she wants to use a 2003 estimate of 55% obtained from a Gallup Youth…

Q: An article reported that 73% of companies have Twitter accounts. An economist thinks the percentage…

A:

Q: Nationally, 61% of American own American cars, 26% of Americans own Asian cars, and the remaing…

A:

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: The Mayoral challenger claims that less than 30% of residents over the age of 25 have bachelor's…

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.