If N=570 and P-hat is  0.64 find the margin of error At a 99% confidence level. Give your answer to 3 decimal places

Q: Suppose you compute a confidence interval with a sample size of 100. What will happen to the…

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Q: Suppose we know that a confidence interval is (-.735, .125). Find the sample mean and the error…

A: Ans- Given,     a confidence interval is (-.735, .125). Find  the sample mean and the error bound.

Q: If n - 180 and p (p-hat) = 0.3, construct a 99% confidence interval. Give your answers to three…

A: Find z-critical value:…

Q: Express the confidence interval from 12.7% to 23.7% in the form of p ± MOE. Here, "MoE" means…

A: For the given data Find p hat  =? MOE = ?

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: A study found that for a sample of cars traveling on Interstate 70, the average speed was 70 mph…

A: We have to find margin of error.

Q: In a sample of 200 adults, 174 had children. Construct a 90% confidence interval for the true…

A: Given : Sample Size, n = 200 Number of successes, x = 174 confidence level,c=0.9…

Q: A poll of 1468 U.S. adults found that 44% regularly used Facebook as a news source. Find the…

A: Given information Sample size (n) = 1468

Q: Use the given confidence interval to find the margin of error and the sample mean.   ​(70.7​,85.7​)…

A: Use the given confidence interval to find the margin of error and the sample mean.   ​(70.7​,85.7​)…

Q: A new fertilizer was applied to the soil of 276 bean plants. 24% showed increased growth. Find the…

A: Given Data: p=0.24 n=276   z-value corresponding to 95% Confidence level=1.96

Q: A research found that 70% of 1500 randomly selected U.S. adults believe in global warming. Find the…

A: Solution: From the given information, p-hat=0.70 and n=1500.

Q: Use the confidence interval to find the margin of error and the sample mean.   (1.69,2.07) The…

A: Given Confidence interval (1.69,2.07)

Q: Out of 500 people sampled, 190 had kids. Based on this, construct a 90% confidence interval for the…

A: Given : Sample Size, n = 500 Number of successes, x = 190 confidence level,c=0.9

Q: If n = 320 and p (p-hat) = 0.7, construct a 90% confidence interval. Give your answers to three…

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Q: A random sample of 100 employees at a company shows that 62 are female.  Form a 95% confidence…

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Q: Express the confidence interval 85.8 % ± 3 % in interval form. Write you answer in DECIMAL form.…

A: From the provided information, Confidence interval is 85.8% ± 3%

Q: Express the confidence interval (45.7 % , 59.5 % ) in the form of p + ME.

A: From the provided information, Confidence interval is (45.7%, 59.5%)

Q: The confidence interval for a population porportion is (0.57, 0.73). What the the sample proportion…

A: Given the confidence interval for a population porportion is (0.57, 0.73).That is, lower confidence…

Q: A sample of 175 U.S. adults is composed of 100 women and 75 men. What is the estimate of the true…

A: Given problem Given that

Q: A recent survey of 120 individuals revealed that 50 thought they were worse off financially than a…

A: Given,n=120x=50α=1-0.90=0.1α2=0.05Z0.05=1.645

Q: lease show step by step work In another pre-election poll, a pollster finds that 372 out of 600…

A: Given data, n=600 x=372 p=x/n =0.62 z-value at 95% confidence is Zc=1.96

Q: If n=120 and p (p-hat) =0.31, find the margin of error at a 99% confidence level Give your answer to…

A: Sample size, n = 120 p^ = 0.31 99% confidence level

Q: A motorcycle dealer with the "Hd" brand wants to know the percentage of students in the city "X" who…

A: We have to find confidence interval.

Q: Express the confidence interval 36.4 % ± 6.2 % in interval form. Express the answer in decimal…

A: Convert 36.4%±6.2% in interval form

Q: Out of 400 people sampled, 288 had kids. Based on this, construct a 99% confidence interval for the…

A: In statistical inference, there are two types of estimation,  1) Point estimation and 2) Interval…

Q: In a survey of 3361 adults in a country, 44% believe the economy is getting better. Three weeks…

A: Given Information: In a survey of 3361 adults in a country, 44% believe the economy is getting…

Q: In 2011 the U.S. Department of Transportation reported with 95% confidence that the average length…

A: We have to find confidence interval value.....

Q: If n=510 and p (p-hat) =0.47, find the margin of error at a 90% confidence level Give your answer as…

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Q: A poll showed that 385 out of 700 adults said they would be interested in traveling to outer space…

A: This question requires accurate results, Hence I will use excel to solve this question.…

Q: If n-350 and (p-hat) -0.88, find the margin of error at a 95% confidence level Give your answer as a…

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Q: Nearly one-half of Americans ages 25 to 29 are unmarried. How large a sample is necessary to…

A: The provided information is The margin of error is E=0.02 α=0.05 The critical value is zc=1.96…

Q: In a sample of 460 adults, 281 had children. Construct a 90% confidence interval for the true…

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Q: If n=15, (xbar)=42, and s=8, find the margin of error at 95% confidence level. Give your answer to…

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