In a poll of 1000 randomly selected voters in a local election, 322 voters were against school bond measures. What is the 95% confidence interval? [ Ex: 0.123| Ex: 0.123] [smaller value, larger value]

Q: A survey of 540 depressed shoppers found at 32% of them shop on impulse. What is the 99% confidence…

A: Given : Sample Size, n = 540 confidence level,c=0.99 Significance level, α…

Q: In a survey of 650 randomly selected U.S. males ages 18-64, 396 say they have gone to the dentist in…

A: Given,n=650x=396p^=xnp^=396650=0.6091-p^=1-0.609=0.391α=1-0.90=0.1α2=0.05Z0.05=1.645     (from…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Sample size:The minimum sample size for a desired confidence level, α with a given margin of error,…

Q: It was observed that 4 out of 10 randomly selected students went to the cinema. Find the 95%…

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Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: In this question, It has been given that Margin of error = 0.05 and level of significance = 0.005.…

Q: In a poll of 1000 randomly selected voters in a local election, 264 voters were against fire…

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Q: A random sample of 35 lumbar supports used by motorcycle riders and automobile race-car drivers were…

A: We have given that the sample of size n = 35. Here we need to find out the 95% two-sided confidence…

Q: In a randomly selected sample of 400 registered voters in a community, 200 individuals say that they…

A: A sample of 400 registered voters in a community were randomly selected in which 200 individuals say…

Q: In a poll of 1000 randomly selected voters in a local election, 388 voters were against school bond…

A: It is given that sample size (n) is 1000 and x is 388.

Q: In a recent poll, 280 people were asked if they liked dogs, and 51% said they did. Find the margin…

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Q: In a random sample of 500 people eating lunch at a cafeteria on various Fridays, it was found that…

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Q: In a recent poll, 260 people were asked if they liked dogs, and 13% said they did. Find the margin…

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Q: In a random sample of 500 people eating lunchbat a cafeteria on various fridays, it was found that…

A: Given X=160 n=500 P=X/n

Q: A researcher institute poll asked respondents if that acted to annoy a bad driver. in the poll,…

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Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: It is given that margin of error (E) is 0.10 and the confidence level is 0.90.

Q: The Graduate Schools take a random sample of recent MS graduates (n=135) and finds that 12 of these…

A: Givenn=135x=12confidence interval = 90%p^=xn=12135=0.0889α=1-0.90=0.10α2=0.05zc=zα2=z0.05=1.6449…

Q: 2. Ina random sample of 500 students in SNHS eating lunch, it was found out that 160 preferred sea…

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Q: A health insurance firm wants to estimate the proportion of a population that would receive the flu…

A:

Q: In a sample of 225 registered voters of City Unknown, 63 of 100 males and 59 of 125 females support…

A: Given  X1=63, n1=100, X2=59, n2=125

Q: The workers at a certain company took a random sample of 800 manhole covers and found that 40 of…

A:

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Confidence interval for population proportion                                  p^±Z0.90 p^q^n Assume…

Q: A polling agency conducted a survey of 100 doctors on the question “Are you willing to treat women…

A: Solution: From the given information, n=100 and the confidence level is 0.95.

Q: consider  a random sample of 300 students in a university,75 of them declared that they like playing…

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Q: In a poll of 1000 randomly selected voters in a local election, 148 voters were against fire…

A:

Q: n a recent poll, 500 people were asked if they liked dogs, and 92% said they did. Find the margin of…

A: Given data, n=500 p=92%=0.92 Z value at 90% confidence is Zc=1.645 margin of error(E)=?

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: We have to find correct answer..

Q: In another pre-election poll, a pollster finds that 442 out of 650 people polled favor Smith.…

A: Given: Total no of people polled , n=650 No. of people favor Smith, x=442 Confidence level=95%

Q: 2. In a random sample of 150 drivers arrested for DUI (drunk driving), 90% were males. The 99%…

A: According to the given information, we have Total number of drivers arrested for DUI = 150 90% were…

Q: A random sample of 35 lumbar supports used by motorcycle riders and automobile race-car drivers were…

A: Given that to test the proportion of damaged helmet, the random sample of 35 lumbar is taken.

Q: In a poll of 1000 randomly selected voters in a local election, 915 voters were in favor of school…

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Q: 5. In the past, 44% of those taking a public accounting qualifying exam have passed the exam on…

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Q: b.Suppose a similar survey will be given to vaccine-eligible people in Canada by Canadian health…

A: Given data, p=0.5 E=0.02 z-value at 95% confidence is Zc=1.96 n=?

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Given Information:  Margin of error (e) = 10%  Confidence level = 90%  The z score at 90% confidence…

Q: In a poll of 1000 randomly selected voters in a local election, 59 voters were against school bond…

A: The confidence interval is used to find the range of interval in which the true parameter lies in.…

Q: studying an anomaly in chick embryos, 50 fertilized eggs were injected with a treatment on the…

A: Given Data Sample Size, n = 50 Number of successes, x = 50-12=  38.0 Significance…

Q: A survey of 503 women shoppers found that 46% of them shop on impulse. What is the 99% confidence…

A: Given : Sample Size, n = 503 confidence level,c=0.99

Q: population proportion, what is the 95% confidence interval estimating the proportion of businesses…

A: Given : Sample Size, n = 673 Number of successes, x = 384 confidence level,c=0.95

Q: In a poll of 1000 randomly selected voters in a local election, 664 voters were in favor of school…

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Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Solution: From the given information, confidence level is 0.995 and E=0.025. Since the proportion…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Given margin of error=6% confidence level=90% so alpha=10%

Q: a random sample of 63, the proportion of the sample with a certain characteristic was 0.61. What is…

A:

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A:

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Given,margin of error (E)=0.08sample proportion(p^)=0.5α=1-0.90=0.1α2=0.05Z0.05 =1.6449

Q: In a recent poll, 500 people were asked if they liked dogs, and 72% said they did. Find the margin…

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Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Provided information is, a political candidate asked to conduct a poll to determine what percentage…

Q: A survey of 800 women shoppers found that 17% of them shop on impulse. what is 98% confidence…

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Q: When n=343 college students are randomly selected and surveyed, it is found that x=110 own a car.…

A: Here from a sample of 343 college students 110 of them owned a car. We need a 99% CI and margin of…

Q: 13. In another pre-election poll, a pollster finds that 438 out of 600 people polled favor Smith.…

A: It is given that sample size (n) is 600 and x is 438.

Q: In a survey of 500 potential jurors, one study found that 350 were regular watchers of at least one…

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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.