The American Heart Association is about to conduct an anti-smoking campaign and wants to know the fraction of Americans over 3636 who smoke. Step 2 of 2 :   Suppose a sample of 632632 Americans over 3636 is drawn. Of these people, 202202 smoke. Using the data, construct the 90%90% confidence interval for the population proportion of Americans over 3636 who smoke. Round your answers to three decimal places.

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A: The objective of this question is to construct a 90% confidence interval for the population…

Q: You're considering going to graduate school, and you would like to know how many people would…

A:

Q: Out of 300 people sampled, 156 had kids. Based on this construct a 90% confidence interval for the…

A: X = 156 N = 300

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A: The (1-α)% confidence interval for the difference in population proportions p1-p2 is given by;…

Q: A Pew Internet Project Data Memo presented data comparing adult gamers with teen gamers with respect…

A: Given : p̂1 = 0.54 p̂12 = 0.89 n1 = 1063 n2 = 1064

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A: Obtain the margin of error for the poll at the 95% confidence level. The margin of error for the…

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Q: In a sample of 460 adults, 262 had children. Construct a 95% confidence interval for the true…

A: Provided information: Total number of adults = 460 and 262 had children 95% confidence level

Q: Many high school students take the AP tests in different subject areas. In one year, of the 144,140…

A: given data  n1 = 144140   x1 = 84545p^1 = x1n1 = 84545144140 = 0.5865 n2 = 216298    x2 = 126501p^2…

Q: In a recent poll, 200 people were asked if they liked dogs, and 16% said they did. Find the Margin…

A: Solution: From the given information, 0.16 and n=200. The confidence level is 0.90.

Q: Over the break, you do some reasearch. In a random sample of 250 U.S. adults, 56% said they ate…

A:

Q: A survey of 1,000 adults showed 58% believed the driving age should be changed from 16 years of age…

A: Provided information: Number of adults in a survey = 1000 58% believed the driving age should be…

Q: A survey of 700 non-fatal accidents showed that 167 involved uninsured drivers. Construct a 99%…

A: Given data,n=700x=167Point estimate isp=xn=167700=0.2386Construct a 99% confidence interval?

Q: In a survey of 2274 adults, 749 say they believe in UFOs. Construct a 99% confidence interval for…

A:

Q: An environmentalist wants to find out the fraction of oil tankers that have spills each month. Step…

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

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Q: In a survey of 2344 ​adults, 715 say they believe in

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A: The proportion of sample Americans who lease a vehicle is, Thus, the proportion of sample Americans…

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A:

Q: In a recent poll, 410 people were asked if they liked dogs, and 24% said they did. Find the Margin…

A: We have to find margin of error.

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A: Given data n=200 p=23% confidence level=99%

Q: In a recent poll, 270 people were asked if they liked dogs, and 15% said they did. Find the Margin…

A: given data sample size (n) = 270p^ = 0.1595% ci p, E = ?

Q: Out of 240 sample students surveyed, 187 students are planning to take classes during the…

A: We have given that the sample size n=240 and favourable cases X=187. Sample proportion p^ = X/n.

Q: You observe 60 customers at a coffee shop, and 82% of them tip. What is the 95% confidence interval…

A: Given : You observe 60 customers at a coffee shop, and 82% of them tip.

Q: You're considering going to graduate school, and you would like to know how many people would…

A: From the provided information Sample size (n) = 29, People who recommend x = 9 The sample proportion…

Q: You plan to construct a 90% confidence interval for the proportion of all middle school students who…

A:

Q: A survey of 26 individuals found that they spent an average of $39.21 on exercise attire for the…

A: Confidence interval is an inference process which is used to estimate the population parameter. The…

Q: In a recent poll, 410 people were asked if they liked dogs, and 32% said they did. Find the Margin…

A:

Q: In a recent poll, 290 people were asked if they liked dogs, and 40% said they did. Find the Margin…

A:

Q: In a sample of 110 adults, 76 had children. Construct a 95% confidence interval for the true…

A: It is given that, in a sample of 110 adults, 76 had children. It is needed to find a 95% confidence…

Q: A research group asked 4488 Americans how they fall asleep, and 536 of them fall asleep on their…

A:

Q: In a recent poll, 310 people were asked if they liked dogs, and 40% said they did. Find the Margin…

A: Given data: n = 310p⏞ = 40100=0.40C.I = 99%      =0.99Then, calculate αα = 1-0.99   =0.01Now,…

Q: A survey of 100 men found that 68% said they find it hard to buy holiday gifts that convey their…

A: Solution

Q: A research group asked 4488 Americans how they fall asleep, and 536 of them fall asleep on their…

A: Obtain the 90% confidence interval for the percentage of all Americans who fall asleep on their…

Q: In a sample of 300 people, 154 said that they watched news on television. Find the 90% confidence…

A: According to the given information in this question We need to find the 90% confidence interval of…

Q: one with a 95% confidence level and the other with a 99.7% confidence level. Which interval is…

A: Confidence interval is probability, which refers that population parameter will fall within set of…

Q: In a survey of 4061 ​adults, 738 say they have seen a ghost. Construct a​ 99% confidence interval…

A: In this question, it has been given that 738 people out of 4061 people have seen the ghost, we have…

Q: A random sample of n1 = 262 people who live in a city were selected and 117 identified as a "dog…

A: Reviewing information, n1=262 x1 : No. of identified dog person in a city=117 n2=108 x2 : No. of…

Q: A recent study indicated that 24% of women over 55 are widows. A researcher wishes to estimate with…

A:

Q: In a recent poll, 260 people were asked if they liked dogs, and 80% said they did. Find the Margin…

A: Given:

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

A: Given , n = 1008 x = 598

Q: An experimenter investigated the effects of blue light exposure on people’s sleep quality.…

A: In the given research problem, there are two independent samples- Blue light and No Blue light. The…