In a recent poll of 1100 randomly selected home delivery truck drivers, 26% said they had encountered an aggressive dog on the job. What is the margin of error, using a 95% confidence level, for estimating the true population proportion of home delivery truck drivers who have encountered an aggressive dog on the job? Round answer to thousandths place. E =

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

A:

Q: In a Gallup poll of 804 randomly selected adults living in the 50 U.S. states and the District of…

A: Answer x =466n =804Confidence interval =95%

Q: In a survey, 8 people were asked how much they spent on their child's last birthday gift. The…

A: The sample size, i.e., the sampled number of people, n=8.The sample mean, x¯=$37.The sample standard…

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

A:

Q: find the sample size needed to estimate the percentage of democrats who have tattoos. Use a 0.05…

A:

Q: In a survey, 28 people were asked how much they spent on their child's last birthday gift. The…

A:

Q: Over the break, you do some reasearch. In a random sample of 250 U.S. adults, 56% said they ate…

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: A university dean is interested in determining the proportion of students who receive some sort of…

A: Given data, n=152 x=101 p=x/n =0.664 The 95% CI is Zc=1.96

Q: A university dean is interested in determining the proportion of students who receive some sort of…

A: It is given that Sample size n = 250 Number of students receiving scholarship, X = 70 The critical…

Q: Public Policy Polling recently conducted a survey asking adults across the U.S. about music…

A: Given data  N = 571 X = 80 99% confidence interval

Q: A survey was conducted that asked 1007 people how many books they had read in the past year. Results…

A: Sample mean = x̅ = 14.3 Sample size = n = 1007 Sample S.D = s = 16.6 Standard Error = s/√n  =…

Q: malls were the exclusive focus of 10 percent of articles. The standard error of that proportion is 3…

A: From the provided information,Confidence level = 95%

Q: You're considering going to graduate school, and you would like to know how many people would…

A: From the provided information Sample size (n) = 29, People who recommend x = 9 The sample proportion…

Q: In a survey, 28 people were asked how much they spent on their child's last birthday gift. The…

A: Since population standard deviation is unknown, Use t-distribution to find t-critical value. Find…

Q: It is known that ticks in York County carry the Lyme disease.  In a representative sample of 200…

A: Let n=sample size, X=number of Carry disease. p^=x/n  X=167, n=200

Q: A survey asked, "How important is it to you to buy products that are made in America?" Of the 600…

A: Given x=450 n=600

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

A:

Q: Find the condence level and a for a. a 90% confidence interval.b. a 99% confidence interval.

A: a.The confidence level and α for a 90% confidence interval is obtained below:The confidence level is…

Q: A survey of 26 individuals found that they spent an average of $39.21 on exercise attire for the…

A: Confidence interval is an inference process which is used to estimate the population parameter. The…

Q: in a survey of 2042 adults in a recent​ year, 715 made a New​ Year's resolution to eat healthier.…

A:

Q: In a sample of 300 people, 154 said that they watched news on television. Find the 90% confidence…

A: According to the given information in this question We need to find the 90% confidence interval of…

Q: 5-Seventy percent of 50 randomly selected students from college of science and engineering were…

A:

Q: A poll asked whether states should be allowed to conduct random drug tests on elected officials. Of…

A:

Q: The mean cost of a meal for two in a mid-range restaurant in Tokyo is $40 (Numbeo.com website,…

A: Given the mean cost of a mean for two in mid- range restaurant in tokyo is $40.The data for cost of…

Q: A poll asked whether states should be allowed to conduct random drug tests on elected officials. Of…

A: n = 21410 p^ = 0.72 99% ci for p

Q: In general, when you increase the confidence level for a confidence interval using the same sample…

A: As confidence level increases critical value is going to increase .  Here they given sample…

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

A:

Q: A research institute poll asked respondents if they acted to annoy a bad driver. In the poll, n=2320…

A: The random variable percentage of people who said they honked follows binomial distribution. The…

Q: You receive a brochure from a large university. The brochure indicates that the mean class size for​…

A: Sample size is, Population mean is Confidence Level is The objective is to test the claim that the…

Q: A research institute asked students if they felt vulnerable to identity theft. In the poll, n=1047,…

A:

Q: In a survey, 31 people were asked how much they spent on their child's last birthday gift. The…

A:

Q: Find 90% confidence interval for the true proportion of all medical students who plan to work in a…

A: Given : Sample Size, n = 300 Number of successes, x = 30

Q: Construct a 95% confidence interval for the proportion of college students who say they own their…

A: Given : n=410 , X=155  , α=0.05 We want to find the 95% confidence interval for the proportion of…

Q: According to a telephone survey of adults, 86% of homeowners said that owning a home was a good…

A: From the given information, According to a telephone survey of adults, 86% of homeowners said that…

Q: Use the sample data and confidence level given below to complete parts​ (a) through​ (d). A…

A: Solution: From the given information, x=548 and n=931.

Q: In a survey, 29 people were asked how much they spent on their child's last birthday gift. The…

A: Answer  Given  Confidence interval CI = 80%   α=1-0.80    =0.2 sample size [n] =29  degree of…

Q: A survey was conducted that asked 1016 people how many books they had read in the past year. Results…

A: Given x-bar=13.7 S=16.2 n=1016

Q: In a survey, 23 people were asked how much they spent on their child's last birthday gift. The…

A: Givensample size(n)=23sample mean (x) = 31standard deviation (s) = 8α = 1-0.95=0.05α2=0.025degrees…