Out of 500 people sampled, 455 preferred Candidate A. Based on this, estimate what proportion of the voting population (p) prefers Candidate A. Use a 99% confidence level, and give your answers as decimals, to three places.

Q: Use the confidence interval to find the margin of error and the sample mean. (1.52,2.06)

A: Given: Confidence interval is (1.52, 2.06) To determine: The margin error and The sample mean.…

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

A:

Q: Use the confidence interval to find the margin of error and the sample mean. (1.71, 1.99)

A: Solution:  Given data: confidence Interval = (1.71, 1.99) To find: 1.Margin of error 2. Sample mean…

Q: Identify the sample, the population the sampling method, and then indicate whether the sample is…

A: Population: The experiment studies the proportion of adults who feel vulnerable to identity theft.…

Q: If n=500 and p^ (p-hat) =0.13, find the margin of error at a 90% confidence level Give your answer…

A: Find z-critical value: For the two-tail test, Area on each tail. Area to the left of the normal…

Q: In 1950​, an organization surveyed 1100 adults and​ asked, "Are you a total abstainer​ from, or do…

A: Given data,   x1= 396                                                  x2= 319 n1=1100…

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

A:

Q: Political survey- A political analyst found that 43% of 300 randomly seleted republican voters feel…

A: It is given that p hat is 0.43 and sample size is 300. The confidence level is 0.95.

Q: If n=11, ¯xx¯(x-bar)=32, and s=9, find the margin of error at a 98% confidence level

A:

Q: There are 2,000 eligible voters in a precinct. 500 of the voters are selected at random and asked to…

A:

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

A: (a). Find the best point estimate of the population proportion p: It is given that, in a poll of n =…

Q: Based on a sample of 80 men, 35% owned cats Based on a sample of 40 women, 50% owned cats The test…

A:

Q: Researchers conducted a survey to examine the difference between the proportion of females who vote…

A: Given that  X1= 85 n1= 200 X2= 124 n2= 220 p= x/n So p1= X1/n1 = 85/200 p1= 0.425 p2= 124/220 p2=…

Q: If n=23, ¯x (x-bar)=38, and s=5, find the margin of error at a 99% confidence level

A: The degrees of freedom is obtained as follows:

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

A: Given , n = 1008 x = 598

Q: 2. A researcher wants to estimate the daily expenses of college students. He wants a 95% confidence…

A: We have given that,  Population standard deviation (σ) = 99.50, margin of error (E) = 45 and…

Q: The city of Raleigh has 6,700 registered voters. There are two candidates for city council in an…

A: Given : Out of 600 randomly selected registered voters was conducted. 344 said they'd vote for…

Q: If the candidate only wants a 6% margin of error at a 99% confidence lev

A: Given that, The margin of error (E) is 0.06. Assume that p as 0.5.

Q: Are most student government leaders extroverts? According to Myers-Briggs estimates, about 82% of…

A: Given: Population proportion, p=0.82 Sample size, n=71 Number of students found to be extroverts,…

Q: If n=12, ¯xx¯(x-bar)=44, and s=5, find the margin of error at a 99% confidence level

A: Given: margin of error for a 99% confidence interval. n=12 x¯(x-bar)=44 s=5

Q: A Gallup poll of 1001 Americans age 18 and over conducted in May of 2013 found that 80% of the…

A: Given,            a Gallup pool of 1001 Americans age 18 and over was conducted.     Again we know-…

Q: Out of 600 people sampled, 132 preferred Candidate A. Based on this, estimate what proportion of the…

A:

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 felt vulnerable to identity theft. In the​ poll,…

A:

Q: If n=270 and ˆpp^ (p-hat) =0.59, find the margin of error at a 99% confidence level Give your…

A: Given  n=270, pcap=0.59, alpha=0.01 Zcritical=2.578 at alpha=0.01 We want to find margin of error

Q: Out of 200 people sampled, 10 preferred Candidate A. Based on this, estimate what proportion of the…

A: We have given that,  Favorable cases (X) = 10 and sample size (n) = 200 Then,  We will find 95%…

Q: ut of 600 people sampled, 168 preferred Candidate A. Based on this, estimate what proportion of the…

A:

Q: In a past presidential election, 37,285,240 people voted for Candidate A; 37,201,620 for Candidate…

A: Percentage=value for the corresponding variable observationtotal value*100 The value range interval,…

Q: If n=490 and ˆpp^ (p-hat) =0.46, find the margin of error at a 99% confidence level.Give your answer…

A:

Q: If n=13, = 42, and s=7, find the MARGIN OF ERROR at a 99% confidence level

A:

Q: If n=440 andp (p-hat) =0.57, find the margin of error at a 99% confidence level Give your answer to…

A:

Q: Out of 200 people sampled, 46 preferred Candidate A. Based on this, estimate what proportion of the…

A: Answer - Out of n = 200 people sampled, x = 46 preferred candidate A.                  P^ = xn  =…

Q: In 1949, an organization surveyed 1100 adults and asked, "Are you a total abstalner from, or do you…

A: Given : x1=374n1=1100p^1=0.34x2=330n2=1100p^2=0.30We want to find the value of test stitistic.

Q: If n=12, ¯xx¯(x-bar)=48, and s=6, find the margin of error at a 98% confidence level

A: From the provided information, Sample size (n) = 12 Sample mean (x̄) = 48 Standard deviation (s) = 6…

Q: The Institute of Education Sciences measures the high school dropout rate as the percentag of 16-…

A: Answer: A. Reject Ho; we can conclude that the high school dropout rate has decreased.

Q: Out of 400 people sampled, 260 preferred Candidate A. Based on this estimate, what proportion (as a…

A: Given info: Out of 400 people sampled, 260 preferred Candidate A. Based on this estimate, the…

Q: A public opinion pollster wants to estimate the percentage of voters who favor an upcoming proposal.…

A:

Q: The city of Raleigh has 11,900 registered voters. There are two candidates for city council in an…

A: Here we solve the given statical problem.

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

A:

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: a recent poll, 210 people were asked if they liked dogs, and 42% said they did. Find the margin of…

A:

Q: Out of 400 people sampled, 24 preferred Candidate A. Based on this, estimate what proportion of the…

A: Given Data, Out of 400 people 24 Prefers A which means  n=400 x=24 sample proportion (p)=x/n =…

Q: found that 65% of Florida voters support stricter gun laws. There are approximately 13 million…

A:

Q: There are 2,000 eligible voters in a precinct. 500 of the voters are randomly selected and asked…

A: We have to create 99% confidence interval for the proportion.

Q: Out of 300 people sampled, 21 preferred Candidate A. Based on this, find a 99% confidence level for…

A: Given Data Sample Size, n = 300 Number of successes, x = 21

Q: Out of 400 people sampled, 68 preferred Candidate A. Based on this, estimate what proportion of the…

A:

Q: Political Survey- A political analyst found that 43% of 300 randomly selected republican voters feel…

A: It is given that p hat is 0.43 and sample size (n) is 300. The confidence level is 0.95.

Q: suppose you select a simple random sample of 75 douglas college student and you find that 8 are left…

A: It is given that the sample size n is 75 and x is 8.

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

A: Given, The sample proportion is,

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.