Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 73 people in the 18-21 age bracket and finds that 62 of them respond and 11 refuse to respond. When 316 people in the 22-29 age bracket are contacted, 292 respond and 24 refuse to respond. Assume that 1 of the 389 people is randomly selected. Find the probability of getting someone in the 22-29 age bracket or someone who agreed to respond. Give your answer as a decimal (to at least 4 places).

Q: Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A…

A: Answer:- From the above information we can construct below table,  Age Respond(agreed) Refuse to…

Q: Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A…

A: Age Respond Refuse Total 18-21 85 15 100 22-29 223 319 254 Total 308 46 354

Q: Find the probability of getting someone in the 18-21 age bracket or someone who agreed to respond.…

A: From the information given the contingency table is,   Respond Refuse Total 18 - 21 age 67 12…

Q: Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A…

A:

Q: ters are concerned about declining levels of cooperation among persons contacted in surveys. A…

A: Total number of people who responded = Number of people in 18-21 bracket who does not responded…

Q: Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A…

A: Given data is shown in the below table.

Q: Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A…

A: The given information is represented in the below table:

Q: Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A…

A:

Q: If the probability of choosing a red chip from a bucket is 0.4, What is the probability of not…

A: We have the probability of choosing a red chip from a bucket is 0.4

Q: The tickets in a box have an average value of 75, and the SD is 10. Twenty-five draws are made at…

A:

Q: A student has a 30% chance of getting a particular professor for a class. What are the odds of…

A: From the provided information, There is 30% chance a student getting a particular professor for a…

Q: Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A…

A: The given information is represented in the below table:

Q: . Find the probability of getting someone in the 22-29 age bracket or someone who refused to…

A: Given that A pollster contacts 90 people in the 18-21 age bracket and finds that 76 of them respond…

Q: Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A…

A: Given Information: A pollster contacts 73 people in the 18-21 age bracket and finds that 62 of them…

Q: Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A…

A: Given Total response 357

Q: In a survey of consumers aged 12 and​ older, respondents were asked how many cell phones were in use…

A: Given: Number of respondents answered none = 208 Number of respondents answered one = 295 Number of…

Q: Based on a​ poll, among adults who regret getting​ tattoos, 12​% say that they were too young when…

A:

Q: An animal shelter recorded the animals purchased by the 400 people who walked into the shelter.…

A: DOG FOOD CAT FOOD NO FOOD Total CAT 50 62 46 158 DOG 120 58 4 182 NO ANIMAL 30 20 10 60…

Q: Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A…

A: Contingency table Agreed = ARefused = BTotal18-21 age = C861510122-29 age = D20934243Total29549344

Q: Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A…

A:

Q: In a survey of consumers aged 12 and older, respondents were asked how many cell phones were in use…

A: From the given information ,Total respondents = 201 + 296 + 376 + 138 + 117 .…

Q: Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A…

A: GIVEN: Age Responds Refuse to respond Total 18-21 70 12 82 22-29 240 19 259 Total 310 31…

Q: An urn contains pink and green flowers. Two flowers are chosen without replacement. The probability…

A: We are given the follow

Q: 16.80. There are four letters and four addressed enve- lopes. If the letters are put at random in…

A:

Q: Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A…

A: agree to respond refuse to respond total 18-21 year 67 12 79 22-29 year 262 18 280 total 329…

Q: On a 9 question multiple-choice test, where each questions has 5 answers, what would be the…

A:

Q: Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A…

A: age respond refuse total 18-21 82 15 97 22-29 239 29 268 total 321 44 365

Q: Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A…

A: It is given that, among 77 people in the 18-21 age bracket 65 of them respond and 12 refuse to…

Q: A multiple-choice test has 100 questions, each with four alternatives. At least 60 correct answers…

A: Step 1: Binomial distribution,P(X=r)=nCr​​prqn−rTotal number of independent trials,n=100number of…

Q: Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A…

A: given data age Respond refuse to respond total 18-21 89 16 105 22-29 233 19 252 total 322…

Q: Suppose you are taking a multiple-choice test with c choices for each question. In answering a…

A: Given: The number of choices for each MCQ question is c. The probability of knowing the answer is p.…

Q: Show that the expected value of îN is p.

A: Given that p denote the probability that someone aupports the policy. And X denote the nunber of…

Q: In a survey of consumers aged 12 and older, respondents were asked how many cell phones were in use…

A: The data related to cell phone users is given.

Q: Suppose that 60% of voters oppose a new ordinance.  If we plan to randomly select 20 registered…

A: Let X be the number of voters oppose a new ordinance with probability (p) = 60% = 0.60 and sample…

Q: Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A…

A:

Q: Organ Donors USA Today provided information about a survey of 5100 adult Internet users. Of the…

A: There are 100 adults who are randomly selected from each state and the District of Columbia.

Q: Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A…

A: Define the events, A : The person is age of 22-29 B : the person respond Now there are total 303…

Q: I want my estimate to be accurate, I want the error of pN to be small. How many people should I poll…

A: Given that - Suppose you want to find out how many people support Policy X. A standard polling…

Q: Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A…

A: Given:     Respond Refused to respond Total Age Bracket 18-21 67 12 79   22-29 249 27 276…

Q: Pollsters are concerned about declining levels of cooperation among persons contacted in surveys.A…

A: The total number of people contacted is 94+285=379. Let A be the event getting someone in 22-29 age…

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.