A newsgroup is interested in constructing a 95% confidence interval for the proportion of all Americans who are in favor of a new Green initiative. Of the 581 randomly selected Americans surveyed, 450 were in favor of the initiative. Round answers to 4 decimal places where possible. a. With 95% confidence the proportion of all Americans who favor the new Green initiative is

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Q: a. How many of the 3039 subjects used at least one prescription medication? (Round to the nearest…

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Q: n a survey of 2000 American adults age 60 and over, 1320 received a flu shot. Construct a 90%…

A: Given , n =2000 X=1320 P=x/mn =1320/2000  =0.66 E-value at 90% coincidence is 7c=1.645

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A: The provided information are:

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Q: In a survey on supernatural experiences, 722 of 4019 adult Americans surveyed reported that they had…

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Q: In a random sample of 850 consumers. 385 reported that they were able to purchase a Playstation 5.…

A: According to the given information, we have In a random sample of 850 consumers. 385 reported that…

Q: In a sample of 100, 40 said they preferred Pepsi to coke. A 95% confidence interval for the…

A:

Q: In a​ poll, 51​% of the people polled answered yes to the question​ "Are you in favor of the death…

A: The following information has been provided: p^=0.51E=0.03 The level of significance is : α=1-0.94…

Q: music fans yields this 95% confidence interval estimate of the proportion of fans who love the music…

A: The sample proportion can be calculated as: Sample Proportion=LowerLimit+UpperLimit2 Thus, Sample…

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Q: A simple random sample of 120 vet clinics in the Midwest reveals that the vast majority of clinics…

A: Given that; Sample size (n) = 120  X = 88  At 90% confidence interval .

Q: The researcher rejected the null hypothesis at the 95% confidence level where F(2, 14) = 53.54, p =…

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Q: A survey of 385 people found that 114 graduated college. Which of the following is a 90% confidence…

A: Given X=114 n=385 90% confidence interval for proportion  Zc=1.645  , at alpha=0.10 p=X/n

Q: In a recent poll, 240 people were asked if they liked dogs, and 69% said they did. Find the margin…

A: Given,sample size(n)=240sample proportion(p^)=0.69α=1-0.90=0.1α2=0.05Z0.05=1.645    (from Z-table)

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Q: (d) Develop a 95% confidence interval for this population proportion. (Round your answer to four…

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A: n=390 p = 8%

Q: (c) In a random sample of visitors to a famous tourist attraction, 252 of 750 American tourists and…

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Q: In a poll, 51% of the people polled answered yes to the question "Are you in favor of the death…

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Q: You are doing a class project for Stat 1, and do not have enough money to sample all mobile home…

A: At 95% confidence level, α=0.05 and z=1.96.

Q: In a survey conducted by CNN, 130 of the 250 people that were randomly surveyed have a savings…

A: Given data, n=250 x=130 Sample proportion p=x/n =130/250=0.52 z-value at 90% confidence is Zc=1.645

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Q: d) Provide the appropriate interpretation for the confidence interval.

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Q: If appropriate, construct a 99.9% confidence interval for the ounce milkshakes sold at fast-food…

A: Data  504,450,399,613,608,700,472,510,642,591,375,580

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Q: A health professional takes the temperatures of 5 patients:   99.8    98.3    96.9    98.0    98.3…

A: We have given that  A health professional takes the temperatures of 5 patients: 99.8    98.3    96.9…

Q: in a poll 51% of people polled answered yes to the question Are you in favor of the death penalty…

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Q: In a​ poll, 37​% of the people polled answered yes to the question​ "Are you in favor of the death…

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A: It is given that a student was asked to find a 95% confidence interval for the proportion of…

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Q: 1. A survey of 800 women shoppers found that 17% of them shop on impulse. What is the 1. confidence…

A: We have to find confidence interval for the true proportion of women shoppers who shop on impulse.

Q: In a​ poll, 69​% of the people polled answered yes to the question​ "Are you in favor of the death…

A: Given: Margin of errorE=0.02 Proportion of people who polled yes p^=0.69 The z value corresponding…

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.