A poll in which 567 American parents were asked the question, “Would you prefer to have your child taught by a male or female for grades K-2?” Only 12% responded that they would prefer to have their child taught by a male in grades K-2. Construct a 99% confidence interval for the poll.

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A: Given: Population size, n = 80 Sample size, x = 80 Sample proportion, p^: p^=8080=1

Q: An online seller of Yema Cake, surveyed several customers. Fifty-two percent (52%) of the customers…

A: Given data: Population proportion = 0.52 Margin of error = 3.98% To calculate: Confidence interval

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Q: Newsweek performed a poll in which 567 American parents were asked the question, “Would you prefer…

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Q: What is the relationship between confidence intervals and hypothesis testing? When testing Ho: μ =…

A: Given: Confidence interval=90% Level of significance, a= 1-0.90=0.10

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Q: random digit dialing telephone system was used to conduct a survey asking 3230 city residents; "do…

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Q: In a recent poll, 560 people were asked if they liked dogs, and 22% said they did. Find the margin…

A: For 95% confidence intervalα=1-CI=1-0.95=0.05So, zα2=z0.052=z0.025=1.96

Q: How did the decisions from the hypothesis ?compare to whether or not the 95% or the 99% confidence…

A: Given: The null hypothesis has been rejected at 5% significance level. The null hypothesis has not…

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A: It is given that sample size (n) is 1004 and p-hat value is 0.53.

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

A: It is given that, p^=15%=0.15 Margin of error, E =3%=0.03

Q: In the Framingham Offspring study 3630 subjects were on anti-hypertensive medication out of 4657…

A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only…

Q: In a recent poll, 240 people were asked if they liked dogs, and 32% said they did. Find the margin…

A: Find z-critical value:…

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A: (1)

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Q: A 2019 poll of 1234 randomly selected teenagers asked the question, "do you write a thank you note…

A: Given that  Sample size n =1234 Population proportion p=0.65

Q: An environmental science teacher at a high school with a large population of students wanted to…

A: Given information: To obtain a potentially less biased estimate of the proportion, a statistics…

Q: 1. A recent survey showed that from a sample of 500 packages delivered by a Postal Service, 480 were…

A: We have given that  Sample size n= 500 , favorable cases x=480 Sample proportion p^=x/n=…

Q: An environmental science teacher at a high school with a large population of students wanted to…

A: Question : (b) Given the method used by the environmental science teacher to collect the responses,…

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A: Given data, n=1039 x=634 sample proportion p=x/n =634/1039 =0.61   z-value at 90% confidence is…

Q: In a survey on downloading music, a poll asked 714 Internet users if they "ever downloaded music…

A:

Q: A random sample of accountants were asked whether they double-check their calculations on a tax…

A: Here the sample proportion is given by, p^ Therefore α level confidence interval is given by, p^ -…

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A: Here we need to find the required sample size with a 95% confidence level to estimate the number of…

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Q: What is the relationship between confidence intervals and hypothesis testing? When testing H:µ=µ,…

A: As per Bartleby guideline expert have to answer first question only dear student please upload other…

Q: In a recent poll, 410 people were asked if they liked dogs, and 44% said they did. Find the margin…

A: n = 410 p^=0.44 Confidence interval = 95%

Q: The Pew Internet and American Life Project (A-13) reported in 2003 that 18 percent of Internet users…

A: INTRODUCTION :  Sample proportion : Suppose we draw a sample from population with sample size n. Let…

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A: Givenp^=0.46sample size(n)=529

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A: Givena)Let p1 and p2 be the proportion of whites and blacks who were cigarette smokers…

Q: It was found that in a sample of 90 teenage boys, 70% of them have received speeding tickets. What…

A: Given data ,n=90P=70%=0.7The z-value at 90% confidence is1.645=z∝12=1.645

Q: In a study by Sallie Mae and Gallup, 323 of the 569respondents said that they paid for their…

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Q: What would be the standard error in computing a confidence interval for the difference of…

A: It is given that For population 1, sample size n1 = 49, sample proportion = 0.682 For population 2,…