Professor Li is running for dog catcher. To win, she’ll need at least 51% of the vote, or there will need to be a run-off.  Her campaign manager did a survey and found that 210 of the 400 voters said they’d vote for her.  While she is the underdog, she is sure she will win.  Devise a hypothesis test where α = .05 State the Null and Alternate Hypothesis. Which test statistic does the data call for (which distribution)? Explain why you chose that distribution. State Decision Rule and Critical Value. Compute the Test Statistic and p value. What is your decision concerning Null?

Q: If the ski lift manager chooses to use the p-value approach for his hypothesis test, what does he…

A: Test is that whether the average has increased in recent years.

Q: We would like to know if more than 43% of Spokane citizens favor an increase in the sales tax. We…

A: Given, The sample proportion is,

Q: a. For this study, we should use Select an answer b. The null and alternative hypotheses would be:…

A: Given : n=53 , X=31 , p0=0.68 , α=0.01 The estimate of the sample proportion is ,…

Q: According to the exit polls during the election for the Vermont governor, 457 of the 837 voters…

A: Using z test for one proportion

Q: A city office has previous records indicating that 18% of cars have received parking tickets at some…

A: Given Information: 18% of cars have received parking tickets at some point. A new program was…

Q: are conducting a study to see if the proportion of voters who prefer Candidate A is significantly…

A: In hypothesis testing, a null hypothesis can be defined as the hypothesis of no difference or…

Q: According to national data, 17% of U.S. college students are a member of a sorority or a fraternity.…

A: Q.1 - Solution : Given that :-According to national data, 17% of U.S. college students are a member…

Q: A candidate, who is running for a state senate seat, had a 47% popularity. Her campaign released a…

A: Given that the proportion value is 47% The margin of error is 2%=0.02 Consider the confidence level…

Q: At one school, the average amount of time that tenth-graders spend watching television each week is…

A: Here we want to perform hypothesis test.

Q: The CEO of a large electric utility claims that at least 80 percent of his one million customers are…

A: Assume that p is the true proportion of satisfied customers.

Q: In a sample of 91 children selected randomly from one town, it is found that 15 of them suffer from…

A: In a sample of 91 children selected randomly from one town, it is found that 15 of them suffer from…

Q: Use the following scenario to conduct a hypothesis test.  You will again go through the different…

A: Given: p = 0.58 x = 364 n = 682 α = 0.05

Q: You are conducting a stuldy to significantly different from 53% at a level of significance of a-…

A: a. It can be considered that the sample is collected using a random method.

Q: a population of fish, approximately 47% are female. A test is conducted to see if, in fact, the…

A: A null hypothesis is a type of hypothesis which is used in statistics. It states that there is no…

Q: Pete is a politician. He claims that 34% of the households in his district have total household…

A: We want to find p value Hypothesis  Ho: p=0.34 vs H1: p≠0.34 (two tailed) Z=0.1335

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

A: Note: Thank you for the question. Since multiple subparts are posted, according to our policy, we…

Q: You work for an insurance company and are studying the relationship between types of crashes and the…

A:

Q: In the recent Census, three percent of the U.S. population reported being of two or more races.…

A:

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

A: a. Test TypeFor this study, we should use a one-sample z-test for proportions.b. HypothesesThe null…

Q: A political campaign is interested in whether city 1 has less support for raising the minimum wage…

A: Denote p1, p2 as the true population proportions of supporters, who raising the minimum wage,…

Q: A social psychologist was interested in finding out whether the effect of leadership style on the…

A: For Democratic Leadership: For Autocratic Leadership:

Q: In a sample of 295 male job-holders, 69% said that they are satisfied with their jobs. In another…

A: sample size(n1)=295sample proprotion()=0.69sample size(n2)=128sample proportion()=0.58significance…

Q: A politician believes that 60% of constituents are in favor of a particular issue. She takes a…

A: Null hypothesis:A statistical hypothesis which is assumed and whose validity is tested for possible…

Q: A recent study suggested that 81% of senior citizens take at least one prescription medication.…

A: Claim: 81% of senior citizens take at least one prescription medication.  sample size (n) = 59 x =…

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

A: From the given information, it can be observed that the samples involve the difference in…

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

A: Note: As per our Honor code policy, we are authorized to answer only three sub parts at a time. So,…

Q: A decade-old study found that the proportion of high school seniors who felt that "getting rich" was…

A: We have to find out given null and alternative hypothesis that we would use for this hypothesis…

Q: You are a web designer process engineer for a company that sells jewelry online. You know that 35.0%…

A:

Q: Think of an application where you can use hypothesis testing to test a premise. Use .05 for your…

A: From the above question,Considering the following data for checking difference of mean are whether…

Q: In a recent study of a random sample of 113 people, 92 reported dreaming in color. In the 1940’s,…

A: The random variable dreaming in color follows binomial distribution. The sample size is 113. The…

Q: In the recent Census, 3 percent of the U.S. population reported being two or more races. However,…

A: Given information: x1=9, n1=1000p1=x1n1=91000=0.009x2=17, n2=500p2=x2n2=17500=0.034

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

A:

Q: You have just analyzed the results from your experiment, and you calculated p = .13. What…

A: It is given that the p-value=0.13. Consider the level of significance is as 0.05.

Q: The Statistics Games are played by a large number of students across the county. Last year, 32% of…

A: Givensample size(n)=250p^=0.38

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

A: The question is about hypo. testing Given : Randomly selected no. of potential voters  ( n ) = 69…

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

A:

Q: Abigail, who works for a region's department of health, is looking for evidence that the percentage…

A: Given that Abigail is testing to check the claim that the percentage of current smokers in the…

Q: A decade-old study found that the proportion of high school seniors who felt that "getting rich" was…

A: Let p be the  proportion of high school seniors who felt that "getting rich" was an important…

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

A: Local: Sample size n1=100 Number of successes x1=65 National: Sample size n2=100 Number of successes…

Q: cextbook publisher claims that 75% of college students enrolled in a course that uses their ktbooks…

A: Solution: Given information: n= 111 Sample size of students  x= 92 students  used textbook  pass the…

Q: A decade-old study found that the proportion of high school seniors who felt that "getting rich" was…

A: From the provided information, A decade-old study found that the proportion of high school seniors…

Q: and the alternative hypathesis H that we would use for this test.

A: Here  use two tail proportion test

Q: In a sample of 183 male job-holders, 55% said that they are satisfied with their jobs. In another…

A: Sample data for the females is given as:Number of females in the sample: Sample proportion of…