One day, a poll appeared on a certain website. It asked "Do you believe that rain can soothe the heart and cleanse the mind?" Unsurprisingly, 43% of 589 answers were "Yes". Calculate the margin of error for this poll. Round the percentage to one decimal place. Do not round intermediate steps. If 589 people were asked that question and 43% of them replied "Yes", the margin of error is %.

Q: If you want a poll to have a margin of error of 2.84%, how large will your sample have to be?

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Q: Suppose that the results of a survey show that 41% of people consider summer as their favorite…

A: Solution: The sample size formula is given as below: n = p*q*(Z/E)^2 We are given p = 0.41 q = 1 – p…

Q: Using a random sample of 3800 TV households, a media research company found that 50.3% watched the…

A:

Q: A survey of 78 snowmobilers revealed that 51 of them have driven under the influence of alcohol.…

A: Given data, n=78 x=51

Q: In fall 2014, 34% of applicants with a Math SAT of 700 or more were admitted by a certain…

A: Let A be the event that student had Math SAT of 700 or more Therefore, PA=0.36 find The probability…

Q: A poll of 1,750 people suggested that 56% of respondents regularly watch tv shows through streaming.…

A: Given,n=1750p=0.56q=1-0.56=0.44

Q: 99 students at a college were asked whether they had completed their required English 101 course,…

A: The point estimate of population proportion is sample proportion.

Q: At a local Dunkin’ Donuts, a survey showed that out of 1,090 customers eating lunch, 327 ordered…

A:

Q: Suppose that the results of a survey show that 57% of people consider summer as their favorite…

A: From the provided information, Margin of error (E) = 6% that is 0.06 57% of people consider summer…

Q: A random sample of 324 residents of a community revealed that 30% were very satisfied withthe…

A: Given that, Critical values: By using the standard normal table of Z, the critical value for two…

Q: One day, a poll appeared on a certain website. It asked "Do you believe that rain can soothe the…

A: we wants to calculate the margin of error . let us consider level of significance =0.05 this is one…

Q: A random sample of 2,000 driver's license applications found that 17% reported their eye color as…

A: Solution: Given information: n= 2000 Sample size  p^= 0.17 Sample proportion Assumed Confidence…

Q: What percentage of scores would be above 567?

A:

Q: One day, a poll appeared on a certain website. It asked "Do you believe that rain can soothe the…

A:

Q: If 90% of the athletes who test positive for steroids in fact use them, and 10% of all athletes use…

A:

Q: A company wants to know the proportion of consumers willing to buy their product. How many people…

A: Given that ME=margin of error=1.5%=0.015z=critical value off 90% confidence…

Q: When 445 junior college students were​ surveyed, 135 said that they have previously owned a…

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Q: What is the margin of error for a poll with a sample size of 450 people? Round your answer to the…

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Q: A birthday party host plan for 20 people, but 17 actually attended. What is the percent error?

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Q: A telecommunications company conducted a survey about cell phone companies. Of 1800 randomly and…

A: given  x = 1275 preferred AT&T to Sprint n =Of 1800 randomly and independently selected people…

Q: In fall 2014, 36% of applicants with a Math SAT of 700 or more were admitted by a certain…

A:

Q: Researchers conducted a survey among 400 doctors to ask the question; "Are you willing to treat your…

A: Given Sample size, n = 400  For a conservative case, we assume that the proportion of  patients…

Q: 80 students at a college were asked whether they had completed their required English 101 course,…

A: Given: In a college 80 students completed their English 101 course with 48 students being yes. To…

Q: a nutritionist wishes to determine, within 3% the true proportion of adults who do not eat lunch. if…

A:

Q: a pollster plans to improve survey results by only conducting polls in which the margin of error is…

A:

Q: One day, a poll appeared on a certain website. It asked "Do you believe that rain can soothe the…

A: Given: Sample size =856 p=0.55 Significance level α=0.05 The critical value of z-test is zα=1.96

Q: What is the margin of error for a poll with a sample size of 1450 people? If you round the answer to…

A: We know that   Margin of error  for a pole with n people is given by   Margin of error=±100n

Q: A survey of 1179 adults nationwide  asked what irks you most about The actions of other Motorist"The…

A: Given: Number of People surveyed=1179 People voted for tailgater=796 To find: Percentage(x).

Q: One day, a poll appeared on a certain website. It asked "Do you believe that rain can soothe the…

A: Margin of Error (MoE): It is the range of values below and above the sample statistics of the…

Q: An entertainment company surveyed 360 elementary school children and found that 153 of them were…

A:

Q: In a sample of 169 students, 16 said they have donated blood. What percent of the students have…

A: Given that, In a sample of 169 students, 16 said they have donated blood.

Q: 256 math majors were asked whether they had completed theirscience requirement, and 97 said "yes".…

A:

Q: A newspaper provided a  "snapshot" illustrating poll results from 1910 professionals who interview…

A: Introduction:The 100 (1 – α) % confidence interval for the population proportion, p is: (p̂ –…

Q: Suppose that the results of a survey show that 53% of people consider summer as their favorite…

A: Given that Results of a survey show that 53% of people consider summer as their favorite season.…

Q: The Arizona Department of Transportation wishes to survey state residents to determine what…

A: Given,margin of error(E)=0.04Let us assume sample…

Q: A die with six sides is rolled three times. What is the chance that the ace (single dot) comes up…

A:

Q: One day, a poll appeared on a certain website. It asked "Do you believe that rain can soothe the…

A: Given Data: n=581 p^=0.31   Assuming significance level of 0.05 Using z-distribution z0.05/2=1.96

Q: One day, a poll appeared on a certain website. It asked "Do you believe that rain can soothe the…

A: Given, n=389p=0.52 Since sample size is large, therefore Normal distribution can be approximated.…

Q: It is bleieved that the percent of convicted felons who have a history of juvenile deliquency is…

A: Solution: State the hypotheses Null hypothesis: That is, the percent of convicted felons who have a…

Q: In fall 2014, 34% of applicants with a Math SAT of 700 or more were admitted by a certain…

A: All the given data is shown in the tree diagram

Q: In fall 2014, 38% of applicants with a Math SAT of 700 or more were admitted by a certain…

A: LetA - Percent math S A T score of less than 700 or more in all applicants.B – Percent math SAT…

Q: What is the fraction of deaths that happened before 2012?

A:

Q: 85 students at a college were asked whether they had completed their required English 101 course,…

A: Best point estimate:The best point estimate of population proportion is the sample proportion.

Q: One day, a poll appeared on a certain website. It asked "Do you believe that rain can soothe the…

A: 55 % of 856 answered "YES" n= 856

Q: One day, a poll appeared on a certain website. It asked "Do you believe that rain can soothe the…

A: Given Information: Sample size (n) = 856 Out of which 55% answers were "Yes". That is, Sample…

Q: If the proportion of Hs is .45 out of 50 flips, what is the p-value? Round to three places.

A: We have given that Sample proportion =0.45 Sample size (n)=50 flips  Population proportion p=0.5…

Q: 104 students at a college were asked whether they had completed their required English 101 course,…

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Q: If the proportion of Hs is .25 out of 200 flips, what is the p-value? Round

A: Here proportion of head in fair coin should be 0.5 So take hypothesis with proportion p is 0.5 or…

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.