After a hailstorm, a large car dealership wants to determine the proportion of cars that have damage. The service department randomly selects 50 cars on the dealership lot, examines them, and finds that 11 cars have damage. They want to construct a 99% confidence interval for the true proportion of cars with damage from the storm. Are the conditions for inference met? A) Yes, the conditions for inference are met. B) No, the 10% condition is not met. C) No, the randomness condition is not met. D) No, the Large Counts Condition is not met.

Q: In a Gallup poll of 804 randomly selected adults living in the 50 U.S. states and the District of…

A: Answer x =466n =804Confidence interval =95%

Q: Suppose a consumer advocacy group wants to conduct a survey to find if the proportion of consumers…

A:

Q: In your work for a real estate company, you find that in a sample of 1762 home buyers, 722 found…

A: Given Data: x=722 n=1762   p^=7221762=0.4098

Q: In a survey of 3005 adults aged 57 through 85 years, it was found that 81.7% of them used at least…

A: Given :  n = 3005 p̂=0.817

Q: Imagine you construct three confidence intervals for the same scenario: a 90%the confidence…

A: The confidence intervals are 90% and 95% and 99%.

Q: A graduate Statistic Student wants to estimate the true proportion of county college ( "c.c.")…

A: we have given that  sample size N=100 ,favorable cases X=64 sample proportion P^=X/N

Q: In a survey of 1,200 social media users, 56% said it is not okay to be friends with your boss.…

A:

Q: 6) In a poll, 1000 randomly selected adults are surveyed and 400 of them support a certain social…

A: Given: x = number of people who support a certain social program = 400 n = sample size = 1000 ∝ =…

Q: All patients admitted to a particular hospital can be released on the same day or kept overnight for…

A: a) It is given that n =2550 and x=1020.

Q: A random poll of 900 working men found that 9% had taken on a second job to help pay the bills. a)…

A:

Q: A pew Poll conducted in 2013 surveyed a random sample of 2003 adult Americans, and 18% of them said…

A: The random variable X follows normal distribution. We have to construct 90% confidence interval.…

Q: 5) A polling company wants to conduct a poll that has a margin of error of no more than 3%. How many…

A: We know that formula for computing sample size is, n≥Zα2 E2  P×(1-P)   where,  n = sample size  P =…

Q: In your work for a real estate company, you find that in a sample of 1762 home buyers, 722 found…

A: Givenx=722n=1762p^=7221762p^=0.4098α=1-0.98=0.02α2=0.01zc=z0.01=2.3263         (from z-table)

Q: The marketing department of an airline wants to show management that more than 60% of business…

A: Given, The marketing department of an airline wants to show management that more than 60% of…

Q: The International Nanny Association reports that in a sample of 528 in-home child care providers…

A: Solution:Part (a): Finding the 95% confidence interval for the true proportion of all nannies who…

Q: If you aim to construct a 99% confidence interval for the percentage of high school students taking…

A: The objective of this question is to determine which sample size will result in the smallest margin…

Q: During a school election the local news polled 386 students. The paper reported that 239 students…

A:

Q: Of 380 randomly selected medical students, 21 said that they planned to work in a rural community.…

A:

Q: A principal of a large high school wants to estimate the true proportion of high school students who…

A: Given that  Sample size n =50 95 % confidence interval.  (0.25 , 0.34 )

Q: The individual object in the study was a randomly selected . This is computer-graded so use exact…

A:

Q: Seventy-three percent of a sample of 1000 students drive a used car as opposed to a new car or no…

A: Given: Proportion  = 73 % Confidence level  = 80 %

Q: Health insurance: In 2008, the General Social Survey asked 182 people whether they received health…

A: Given that: Sample size, n=182 Count of successes in sample, x=60

Q: Wildlife biologists inspect 139 deer taken by hunters and find 29 of them carrying ticks that test…

A:

Q: In a survey of 2480 golfers, 15% said they were left-handed. The survey's margin of error was 3%.…

A: Sample size(n)=2480sampl proportion(p^)=0.15Margin of error(E)=0.03

Q: In a survey of 1000 randomly selected adults in the US, participants were asked what their most…

A:

Q: A random poll of 700 working men found that 12% had taken on a second job to help pay the bills. a)…

A: The sample size is 700 and 12% had taken on a second job to help pay the bills.

Q: Sally heard that last year, 40% of senior girls bought used prom dresses. She wants to test if the…

A: We have given that  Sally heard that last year, 40% of senior girls bought used prom dresses. She…

Q: A doctor would like to estimate the mean difference in the number of hours of sleep for seniors in…

A: Random sample of 50 high school seniors  Random sample of 50 seniors from the colleges in his county…

Q: Elly and Drew work together to collect data to estimate the percentage of their classmates who own a…

A: Given that Elly and Drew work together to collect the data to estimate the percentage of their…

Q: In a random sample of 400 residents of Nassau County, 320 residents indicated that they voted for…

A:

Q: A research institute poll asked respondents if they felt vulnerable to identity theft. In the​ poll,…

A: Sample size n=943 Favorable cases x =536 Sample proportion p^=x/n  =536/943 =0.5684

Q: You are trying to estimate the percent of people in California who have a college degree. You…

A: Given that  Sample size n =60 Favorable cases x =18 Sample proportion p^=x/n  =18/60 =0.3

Q: 28) Google is studying the quality of results returned by an upgraded version of its search engine.…

A: Solution: 28. Let X be the number of users of the upgraded search engine who will click on the first…

Q: In a poll, 1000 randomly selected adults are surveyed and 250 of them support a certain social…

A: Solution: 4. a. Let X be the number of adults support a certain social program and n be the sample…

Q: Of 1,050 randomly selected adults, 360 identified themselves as manual laborers, 280 identified…

A: It is given that 26% of the executives prefer trucks, the sample proportion of executives who prefer…

Q: For each scenario, use the drop-down menu to identify if the intended inference is a Confidence…

A: Given 4 scenarios to identify whether the intended inference is a Confidence Interval or a…

Q: Students want to study the propotion of people in their university community who have tested…

A: given data, n=780x= no. of positive =x=516CI=0.99α=1-0.99=0.01

Q: f 260 employees selected randomly from one company, 18.46% of them commute by carpooling. Construct…

A: Given data, n=260 p=18.46% =0.1846 z-value at 98% confidence is Zc=2.326

Q: political researcher takes a survey of 310 randomly selected registered voters in Orlando, and each…

A: Given that.  n=310 , Candidate A=110 , Candidate B=185 Unsure or plan to vote for another…

Q: In a poll conducted, 439 of 1007 adults in a certain country polled said they were "picky eaters."…

A: a. The proportion of the respondents said they were picky eaters is, p^=xn=4391007=0.4359≈0.44 Thus,…

Q: b) Find a 99% confidence interval for the true percentage of flights that arrive late. c) Interpret…

A: a) Assumptions and inferences : Assumption 1: The sample size should be more than 30. Assumption 2:…

Q: In a poll to estimate presidential popularity, each person in a random sample of 1,390 voters was…

A: Given information:Total number of random Sample (n) = 1390Favorable outcome = 500

Q: Candidates for political office realize that different levels of support among men and women may be…

A: Since you have posted a question with multiple sub parts, we will provide the solution only to the…