In a recent poll, 240 people were asked if they liked dogs, and 69% said they did. Find the margin of error of this poll, at the 90% confidence level. p(1 – p) Recall: M.E. = z* Give your answer to three decimals

Q: Kim wants to determine a 99 percent confidence interval for the true proportion of high school…

A: From the given information, Margin error (E) = 0.03 Assume sample proportion = 0.5   The objective…

Q: and ˆpp^ (p-hat) =0.52, find the margin of error at a 99% confidence level Give your answer to…

A: The margin of error can be calculated as: MOE=z×p^(1-p^)n

Q: In a recent poll, 460 people were asked if they liked dogs, and 94% said they did. Find the margin…

A: Ans - Given   P  =  94%    = 0.94,     The sample size  n = 460 people          95%  confidence…

Q: A student was asked to find a 98% confidence interval for widget width, in mm, using data from a…

A: The 98% confidence interval for weight width is 10<μ<31.1. When repeated samples are taken,…

Q: A poll asked respondents if they felt vulnerable to identify theft. In the poll, n= 1000 and x= 501…

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

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Q: In a study of 50 customers that entered a store, 22 were female. What is the margin of error for a…

A: Given : Sample Size, n = 50 Number of successes, x = 22 confidence…

Q: In a​ poll, 51​% of the people polled answered yes to the question​ "Are you in favor of the death…

A:

Q: 7. A recent study of 750 Internet users in Europe found that 35% of Internet users were women. What…

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Q: 4a) A survey asked users of Facebook, “Do you believe Facebook should be able to collect user's data…

A: a) The sample proportion is computed as follows, The value of z at 95% confidence level is 1.96,…

Q: In order to construct the 95% confidence interval, you choose which formula? O x ±1.645 × OT ±1.96 x…

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Q: Based on a survey of a random sample of 900 adults in the United States, a journalist reportS that…

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Q: n a recent poll, 510 people were asked if they liked dogs, and 45% said they did. Find the Margin of…

A: Given Data Sample Size, n = 510 p̂= 0.45 Significance level, α =1-0.99…

Q: The. Nielsen television ratings used a random sample of 2,000 homes and found that 45% of the homes…

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Q: In a recent poll, 240 people were asked if they liked dogs, and 69% said they did. Find the margin…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: In a​ poll, 51​% of the people polled answered yes to the question​ "Are you in favor of the death…

A: The following information has been provided: p^=0.51E=0.03 The level of significance is : α=1-0.94…

Q: Suppose a simple random sample of 700 was taken from a large population. The sample had 32%…

A: Note:Hey, since there are multiple sub-parts question posted, we will answer first three sub-parts.…

Q: Find the margin of error an the 95% confidence interval   -26. A recent survey of 65,000 households…

A: Solution: 26. The confidence level is 0.95. From the given information, p-hat=0.077 and n=65,000.…

Q: find the margin of error at a 95% confidence level

A: Formula for margin of error is,

Q: The researcher rejected the null hypothesis at the 95% confidence level where F(2, 14) = 53.54, p =…

A: F-table  / Technology can be used to find P-value. I am using Excel function,

Q: A survey of 385 people found that 114 graduated college. Which of the following is a 90% confidence…

A: Given X=114 n=385 90% confidence interval for proportion  Zc=1.645  , at alpha=0.10 p=X/n

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

A: Given: Margin of error = 3% At 95% confidence level, the size of sample as to be calculated for the…

Q: Find the value of ta for a 99% confidence interval when sample size is 30. n = 45, s² = 23.5,90%…

A: Sample size is n=30 Significance level α=0.01 df=n-1=30-1=29tα2=t0.012=t0.005=3.038,         From…

Q: What is the critical z value for a confidence level of 99% (to 3 decimal places) for the difference…

A: We have given that  Favourable cases, X1 = 98 Favourable cases, X2 = 80 Sample size, n1 = 140 Sample…

Q: Two samples are taken with the following numbers of successes and sample sizes r1 = 31 r2 = 40 n1 =…

A: We need to construct the 92% confidence interval for the difference between population proportions…

Q: In a previous study, it was found that p̂= .73 for a particular sample. Suppose we would like to…

A: Given information Error = 0.01 Confidence level = 0.98

Q: If n=570 and ˆpp^ (p-hat) =0.8, find the margin of error at a 95% confidence level

A: given that, n = 570 p^=0.8 confidence level = 95%

Q: 99% 0.01 0.005 2.576 ng this table, the necessary value for z2 for a 95% confidence level is

A: Given :  Confidence level ,c = 0.95

Q: A past survey of 1,068,000 students taking a standardized test revealed that 8.8% of the students…

A: The value of z at a 90% confidence level is 1.645, which can be found by using the standard normal…

Q: Two samples are taken with the following numbers of successes and sample sizes r1 = 40 r2 = 33 n1 =…

A:

Q: In a recent poll, 390 people were asked if they liked dogs, and 8% said they did. Find the margin of…

A: n=390 p = 8%

Q: In a random sample of 95 manufacturing firms, 67 indicated that their company attained ISO…

A: For part i]: Linear relationship: 1]The graph of linear relationship forms a straight line.  2] A…

Q: For a height study of silicon nanopillars on a silicon membrane flat, a sample n = 50 is used,…

A: Given that, Mean X bar = 305.58 And Variance= 1366.86 And sample size, n= 50 Z at 95% level of…

Q: In a poll, 51% of the people polled answered yes to the question "Are you in favor of the death…

A: Given that: p= the probability of getting a person who answered yes to the question "Are you in…

Q: Using the data below, a) generate a 95% confidence interval for the proportion of all patients with…

A: It is given that, p hat is 0.715, margin of error (E) is 0.05 and the sample size (n) is 150.  The…

Q: An arborist is interested in determining the mean diameter (in centimeters) of mature white oak…

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Q: 0:361) 41. A study done by researchers at Alfred University concluded that 80% of all student…

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Q: Two samples are taken with the following numbers of successes and sample sizes T1 = 35 r2 = 25 nį =…

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Q: An arborist is interested in determining the mean diameter (in centimeters) of mature white oak…

A: Given: n=7, x=49.09 and s=13.8.   At 95% confidence level, the value of z is 1.96.

Q: find the margin of error at a 90% confidence level

A: Given : n=330 , p-hat=0.28  , α=0.10 We want to find the margin of error at a 90% confidence level.

Q: = 360 and p = 0.09, find the margin of error at a 99% confidence level

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Q: If n=570 and ˆpp^ (p-hat) =0.89, find the margin of error at a 95% confidence levelGive your answer…

A: It is given that the value of n is 570, p hat is 0.89 and the confidence level is 0.95.Here,

Q: A magazine provided results from a poll of 500 adults who were asked to identify their favorite pie.…

A: Solution: Given information: n= 500 Sample size Here we need to interpret the meaning of each…

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

A: From the provided information, n = 1028 and x = 594 The proportion can be obtained as:

Q: After surveying 625 potential voters polled, you find out that 325 support candidate X and 300…

A: The sample proportion confidence interval is, p^±Zp^(1-p^)nwhere, p^ = the sample proportion…

Q: In a​ poll, 37​% of the people polled answered yes to the question​ "Are you in favor of the death…

A: Given information- Margin of error, E = 5% = 0.05 Confidence level, c = 96% We have given that 37​%…

Q: In a​ poll, 69​% of the people polled answered yes to the question​ "Are you in favor of the death…

A: Given: Margin of errorE=0.02 Proportion of people who polled yes p^=0.69 The z value corresponding…