d their candidate. State your answers as percents rounded to 1 decim

Q: In July of 2013, Australians were asked if they thought unemployment would increase, and 47% thought…

A: We have to test at  whether the proportion of people who thought that the unemployment is increases…

Q: Thirty-four percent of U.S adults have very little confidence in newspapers. You randomly select…

A: The binomial probability distribution is, PX=x=nxpx1-pn-x In the formula, n denotes the number of…

Q: A recent study of high school students shows the percentage of females and males who have at LEAST…

A: The (1-α)% confidence interval for the difference in population proportions p1-p2 is given by;…

Q: (a) Which of the following must be true about Deshaun's score? Deshaun scored higher than about 68%…

A: It is given that  Deshaun’s percentile = 32nd Susan’s percentile = 66th

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: When 460 junior college students were surveyed, 100 said they have a passport. Construct a 95%…

A: Given that there are 460 junior college students and 100 said they have a passport. That is, n=460…

Q: Out of 400 people sampled, 336 preferred Candidate A. Based on this, estimate what proportion of the…

A:

Q: You and a friend are interested in knowing if two groups have the same proportion of smokers. The…

A: 1. In the given situation, the proportions of two groups are comparing. The suitable test for…

Q: Kim wants to determine a 99% confidence interval for the proportion of high school students in a…

A: We have given that,  Population proportion (p) = 0.53, margin of error (E) = 0.03 and confidence…

Q: 24 A jam manufacturer claims that the mean amount of jam in its 5-ounces jars is 5.1 ounces. A…

A:

Q: You observe 60 customers at a coffee shop, and 82% of them tip. What is the 95% confidence interval…

A: Given : You observe 60 customers at a coffee shop, and 82% of them tip.

Q: e presidential election process reports many polls. You survey 40 college students and find that 70%…

A: Given data, n=40 p=70%=0.70 Find the 95% confidence interval to estimate the population proportion…

Q: A random sample of 900 car owners in a particular city found 252 car owners who received a speeding…

A: Given,n=900x=252p^=xnp^=252900=0.281-p^=1-0.28=0.72α=1-0.95=0.05α2=0.025Z0.025 =1.96   (from…

Q: Compute a 98% confidence interval for the true percent of students who are against the new…

A: Given: n=521 Confidence level=98%

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

A:

Q: A  campaign wants to construct 90% confidence interval for the proportion of likely voters who…

A: Find z-critical value.

Q: In a recent poll, 130 people were asked if they liked dogs, and 24% said they did. Find the margin…

A: Given, Total number of people = 130 Probability that a person likes a dog = 0.24 z value at 99%…

Q: In a recent poll, 310 people were asked if they liked dogs, and 40% said they did. Find the Margin…

A: Given data: n = 310p⏞ = 40100=0.40C.I = 99%      =0.99Then, calculate αα = 1-0.99   =0.01Now,…

Q: In a survey of 323 adults over 50, 60% said they were taking vitamin supplements. Find the margin of…

A:

Q: Form 90%, 95%, and 99% confidence intervals for the proportion of voters who favor the candidate.…

A: Given that Sample size n = 1000 Number of respondents favor the candidate, X = 214 The critical…

Q: In a recent poll, 300 people were asked if they liked dogs, and 71% said they did. Find the Margin…

A:

Q: A confidence interval was constructed to approximate a population proportion. the interval was from…

A: From the provided information, The confidence interval was from 30.5% to 41.5%.

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: You want to estimate the percentage of small incorporated businesses that are owned by women. A…

A: The random variable percentage of small incorporated businesses follows binomial distribution. The…

Q: in a recent poll, 130 people were asked if they liked dogs, and 46% said they did. Find the Margin…

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

Q: A random sample of 2000 car owners in a particular city found 740 car owners who received a speeding…

A:

Q: A random sample of 1100 voters in a particular city found 440 voters who voted yes on proposition…

A:

Q: A survey showed that 20.2% of the children that participated in the survey like flavor O If the…

A:

Q: medicine. In a recent survey, 2500 teenagers are asked whether or not they use that particular…

A:

Q: A magazine provided results from a poll of 1000 adults who were asked to identify their favorite…

A: Given Information :  A magazine provided results from a poll of 1000 adults who were asked to…

Q: a magazine provided results from a poll of 2000 adults who were asked to identify their favorite…

A: Given Information: A magazine provided results from a poll of 2000 adults who were asked to identify…

Q: A poll of 1021 U.S. adults found that 46% regularly used Facebook as a news source. Find the…

A: Given, n = 1021 p^=0.46 q^ = 1 - p^ = 1 - 0.46 = 0.54 α=0.1

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, 540 people were asked if they liked dogs, and 28% said they did. Find the Margin…

A:

Q: A survey indicates that you should always try to negotiate for a better deal when shopping or paying…

A: The objective of this question is to find the probabilities of people under 34 and 65 or older who…

Q: Out of 200 people sampled, 176 preferred Candidate A. Based on this, estimate what proportion of the…

A: Numer of people sampled (n) = 200 Number of people who preferred candidate A (x) = 176 Find…

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

A: From the given information, The percentage of chocolate pie is 14%. There are 500 respondents.…

Q: y of 2250 ​adults, 732 say they believe in UFOs. Construct a 99%confidence interval for the…

A: The sample proportion of adults who believe in UFOs will be   The critical value from the normal…

Q: The election is coming up in three weeks, and you’d like one last poll to see where things stand.…

A: Given data, p=55%=0.55 E=0.03 z-value at 95% confidence is Zc=1.96 n=?

Q: In a recent poll, 270 people were asked if they liked dogs, and 34% said they did. Find the margin…

A: Sample size=n=270

Q: Need asap. A magazine article conducted a survey of 1000 people in Washington State and found that…

A: A magazine article conducted a survey of 1000 people in Washington State and found that 26% of the…

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.