sample of 10331033 American adults, "Has drug abuse ever been a cause of trouble in your family?" The poll found that 30%30% of respondents said "yes," a record high percentage since the question started being asked in 1995. What is the approximate margin of error for 95%95% confidence? Give your answer to three decimal places.

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A: It is given that student has drawn a simple random sample of fifty students and created a 99%…

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A: The critical value at 99% confidence level from standard normal table will be:   Following…

Q: In a recent poll, 540 people were asked if they liked dogs, and 10% said they did. Find the margin…

A: We have to calculate 95% confidence level margin of error for single proportion.

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A:

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: n a recent poll, 120 people were asked if they liked dogs, and 57% said they did. Find the margin of…

A: given data, n=120p^=0.57CI=0.99α=1-0.99=0.01we have to find out the confidence interval for the…

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A: Proportion is almost similar to the concept of probability. Proportion is a fraction of population…

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A:

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A: Critical value: The value of α is 0.10 for 90% confidence level. Using excel formula…

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A:

Q: In July 2018, the Gallup Poll asked a random sample of 1033 American adults, "Has drug abuse ever…

A:

Q: In a recent poll, 140 people were asked if they liked dogs, and 87% said they did. Find the margin…

A: Sample size, n = 140 p = 87% = 0.87 99% confidence level

Q: A poll of 350 people is taken and the confidence level is 90%. What is the margin of error (MOE)?…

A:

Q: In a recent poll, 480 people were asked if they liked dogs, and 52% said they did. Find the margin…

A: Provided, N=480 P=0.52 be the proportion of people who liked dogs. a=0.10

Q: A recent survey asked the question, “Have you ever cut off communication with a family member…

A: Given that, p^=0.17,n=5592 Critical values: By using the standard normal table of Z, the critical…

Q: n July 2018, the Gallup Poll asked a random sample of 1033 American adults, "Has drug abuse ever…

A: Margin of error is the error due to random sampling. Margin of error decreases with increase in…

Q: Over half of all American teens (ages 12 to 17 years) have an online profile on at least one social…

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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: In a survey of 2308 ​adults, 718 say they believe in UFOs.   Construct a 95 % confidence interval…

A: Given information- Sample size, n = 2308 We have given that out of 2345 adults 718 says they believe…

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A:

Q: In a recent poll, 490 people were asked if they liked dogs, and 5% said they did. Find the margin of…

A: given data n = 490p^ = 0.0590% ci, E = ?

Q: In a recent poll, 140 people were asked if they liked dogs, and 52% said they did. Find the Margin…

A: Given data, n=140 p=52%=0.52 z-value at 99% confidence is Zc=2.576   Margin of error(E)=?

Q: in a recent poll, 220 people were asked if they liked dogs, and 36% said they did . find the margin…

A:

Q: n a recent poll, 230 people were asked if they liked dogs, and 70% said they did. Find the margin of…

A: It is given that the n = 230 and p hat is 0.70.

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A: Find z-critical value:…

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A: Given  p = 0.85, n = 170  Find margin of error for this poll

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Q: In a recent poll, 590 people were asked if they liked dogs, and 24% said they did. Find the margin…

A: The question is about margin of error.Given :No. of people under poll ( n ) = 590Sample proportion…

Q: In a recent poll, 430 people were asked if they liked dogs, and 54% said they did. Find the margin…

A: In a recent poll, 430 people were asked if they liked dogs, and 54% said they did. Find the margin…

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A: The 90% confidence interval for the population proportion is between (0.297,…

Q: womence level. Use E=1%. 2) In a survey of 700 random households in a particular city in NCR, adults…

A:

Q: In a recent poll, 540 people were asked if they liked dogs, and 28% said they did. Find the Margin…

A:

Q: In a recent poll, 150 people were asked if they like dogs, and 40% said they did. Find the margin of…

A:

Q: In a recent poll, 150 people were asked if they liked olives, and 23% said they did. Find the margin…

A: Given: n=150 p=0.23 α=0.1

Q: In a recent pool, 410 people were asked if they liked dogs, and 83% said they did.  What is the…

A:

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.