If n=270 and p (p-hat) =0.93, find the margin of error at a 90% confidence level Give your answer to three decimals

Q: a 99% confidence interval

A: Confidence interval :  Confidence interval measures the degree of uncertainty. or it is the…

Q: In a recent poll, 300 people were asked if they liked dogs, and 54% said they did. Find the Margin…

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

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: If n=590 and ˆp (p-hat) =0.81, find the margin of error at a 95% confidence level Give your answer…

A: Obtain the critical value: The confidence level is 100*(1–α)% = 95%. The critical value…

Q: If n=360 and P (p-hat) =0.48, find the margin of error at a 95% confidence level Give your answer to…

A: Given: n=360  , p^=0.48  we have to find margin of error at 95% confidence level

Q: If a researcher found that the margin of error =0.9 and the sample mean from the study was 17.7,…

A: Given, A researcher found that the margin of error ME  = 0.9 and  The sample mean u = 17.7 Find the…

Q: If n=510 and ˆpp^ (p-hat) =0.19, find the margin of error at a 90% confidence level Give your…

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Q: In a recent poll, 190 people were asked if they liked dogs, and 63% said they did. Find the margin…

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

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.

Q: If a 90% confidence interval for the difference of means μ 1 − μ 2 contains all negative values,…

A: The mean of first population is denoted as μ1 and mean of second population is denoted as μ2.

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: In a recent poll, 240 people were asked if they liked dogs, and 46% said they did. Find the Margin…

A: Given that, Critical values: By using the standard normal table of Z, the critical value at 95%…

Q: If n-140 and p (p-hat) 0.63, find the margin of error at a 90% confidence level Give your answer to…

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

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: In a recent poll, 250 people were asked if they liked dogs, and 8% said they did. Find the Margin of…

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Q: are vegetarian is 0.078. Find the margin of error for a 99% confidence interval.

A: Here given, A researcher wishes to estimate the proportion of adults in the city of Hawalli who are…

Q: A 97% confidence interval for proportion is found to be (.221, .623).  The Margin of Error is?

A: Given : A 97% confidence interval for proportion is found to be (0.221, 0.623)

Q: In a recent poll, 120 people were asked if they liked dogs, and 41% said they did. Find the Margin…

A: From the given information, Sample size = 120 Sample proportion = 0.41   The objective is to find…

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

A:

Q: An environmentalist would like to estimate the true mean weight of all cars. To do so, she selects a…

A: We have given that,  The 90% confidence interval for true mean weight to be 2.8 to 3.4 .  Then,  We…

Q: When 290 college students are randomly surveyed, it is found that 120 own a car. Find a 99%…

A: Given that, x=120,n=290 The sample proportion is, Critical values: By using the standard normal…

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

A: Given:

Q: If n = 300 and p (p-hat) = 0.8, construct a 99% confidence interval. What is the margin of error?…

A:

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: A study found a confidence interval on the proportion of children that are hearing impaired was 0.04…

A: Given confidence interval is 0.04 to 0.16 i.e., p-E=0.04 -->1 p+E=0.16 -->2

Q: raw score that is 1.96 blank above the sample mean

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Q: Suppose you survey a random sample from a large population. How large must your sample be if you…

A: According to the provided data, the margin of error is 0.06 and the confidence level is 0.98. Since,…

Q: In a recent poll, 170 people were asked if they liked dogs, and 87% said they did. Find the Margin…

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

Q: If n = 320 and ˆpp^ (p-hat) = 0.55, construct a 95% confidence interval. Give your answers to three…

A:

Q: If n = 520 and X = 416, construct a 99% confidence interval for the population proportion, p. Give…

A:

Q: In a recent poll, 490 people were asked if they liked dogs, and 51% said they did. Find the Margin…

A: Given data,n=490p=51%=0.51z-value at 99% confidence is Zc=2.576E=?

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

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Q: If n = 100 and ˆpp^ (p-hat) = 0.9, construct a 95% confidence interval. Give your answers to three…

A: Sample size, n = 100 95% confidence level p^ = 0.9

Q: In a recent poll, 450 people were asked if they liked dogs, and 54% said they did. Find the Margin…

A: Solution

Q: A 90% confidence interval for the difference between the proportion of college students who use…

A:

Q: In a recent poll, 600 people were asked if they liked dogs, and 33% said they did. Find the Margin…

A: Margin of error (M.E.): The margin of error for proportion p is given by,

Q: If n = 480 and ˆpp^ (p-hat) = 0.35, construct a 95% confidence interval. Give your answers to three…

A:

Q: In a recent poll, 230 people were asked if they liked dogs, and 72% said they did. Find the Margin…

A:

Q: In a recent poll, 560 people were asked if they liked dogs, and 80% said they did. Find the Margin…

A: We have to find out given confidence interval..

Q: If n = 460 and ˆpp^ (p-hat) = 0.4, construct a 95% confidence interval in excel. Give your answers…

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

A:

Q: and s=3, find the margin of error at a 95% confidence level two decimal places.

A: Solution

Q: In a recent poll, 350 people were asked if they liked dogs, and 41% said they did. Find the Margin…

A: Given ,        Sample size n=350        Sample proportion p∧=0.41             1-p∧=1-0.41=0.59and…

Q: Suppose you compute a 93% confidence interval. What will happen to the confidence interval if you…

A: Increasing the confidence level increases the margin of error. This will increase the width or range…

Q: A random sample of high school seniors were asked whether they were applying for college. The…

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Q: A sample of 1100 observations taken from a population produced a sample proportion of 0.38. Make a…

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Q: In a recent poll, 480 people were asked if they liked dogs, and 44% said they did. Find the margin…

A: Given: Sample size, n =480 p^=44%=0.44 Confidence interval = 90% At 90% C.I:…

Q: If n=430 and (p-hat) = 0.67, construct a 90% confidence interval. Give your answers to three…

A: We have given that,  Sample size (n) = 430 and sample proportion or point estimate (p̂) = 0.67…

Q: In a recent poll, 210 people were asked if they liked dogs, and 59% said they did. Find the margin…

A: Find z-critical value:…

Q: In a recent poll, 430 people were asked if they liked dogs, and 94% said they did. Find the Margin…

A: