Emoticons The website www.gamefaqs.com asked, astheir question of the day to which visitors to the site wereinvited to respond, “Do you ever use emoticons when youtype online?” Of the 87,262 respondents, 27% said thatthey did not use emoticons. ;-(a) What kind of sample was this?b) How much confidence would you place in using27% as an estimate of the fraction of people who useemoticons?

Q: medical information​ online?" Of 1072 Internet users who chose to​ respond, 38% of them responded…

A: The term used to describe this type of survey is C. The respondents are a voluntary response…

Q: According to a Gallup poll taken on September 10th, 1998, 31% of a sample of adults thought that…

A: Sample size = sample size is the number of completed responses your survey receives or (randomly…

Q: We would like to know: "What percentage of college students read the college newspaper every day?"…

A: There are two ways to draw conclusion about a population.

Q: a. Interpret the group means for lower- and upper-class respondents. Which attends church more…

A: a) For lower class, the mean is 2.99 which is approximately 3, it means that the lower class…

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A: By using the standard normal table, the critical value zα2 at the 99% confidence level is, 2.576.…

Q: A company has 14 employees with a salary of $20,500, 11 employees with a salary of $22,800, 16…

A: Given information- A company has- 14 employees with a salary = $20,500 11 employees with a salary =…

Q: A random sample of 2000 driver's license applications found that 17% reported their eye color as…

A:

Q: Marco enjoys playing hockey in his spare time. In his past 6 seasons, the number of goals he has…

A: We have given data are 16,14,14,21,13,24 x x2 16 256 14 196 14 196 21 441 13 169 24…

Q: How do you get online? A 2013 Pew Research survey of802 teens found that, among teens aged 12–17,…

A:

Q: Previously, an organization reported that teenagers spend 8.5 hours per week, on average, on the…

A: To test whether a population mean is equal to the claimed value or not, a hypothesis test can be…

Q: ​Claim: Most adults would erase all of their personal information online if they could. A software…

A: Introduction:Denote p as the true proportion of adults who would erase all of their personal…

Q: What is the most important thing to remember when choosing a sample? a. Samples should be chosen at…

A: We have given that the statement about to the sample. It is a part of population.

Q: A study claims that a normal female body has a temperature of 98.6 degrees Fahrenheit. The body…

A: The t test are used to make mean significant between the sample and population. It also used to make…

Q: The test statistic is: (round to 3 places) The p-value is: (round to 3 places)

A:

Q: In an Adecco staffing survey of 1000, adults in the US, 140 said the salary was the most important…

A: From the provided information, The sample size is 1000 which is sufficiently large and out of which…

Q: Close Confidants and Social Networking SitesA previous exercise introduced a study in which 2006…

A:

Q: The question is asking for all applicable answers and I though it was just the three I had selected…

A:

Q: A lecturer would like to analyse whether there is a relationship between the country of origin of…

A: Population is the set of all units of interest. Sample is a subset of the population. In real life…

Q: In a statistic class, 10 scorea were randomly selected with the following results were…

A:

Q: Is the sample mean always the most frequently occurring value? If so, explain why. If not, give an…

A: No, Sample Mean is not the most frequent Occuring Value.   Mean= Sum of Observations / No.of…

Q: poll of 60 people asking “do you prefer dogs or cats?” Was taken, and 53 of those surveyed said they…

A: Sample size n =60 Favorable cases x =53 Sample proportion p^=x/n  =53/60 =0.8833 Population…

Q: A researcher wants to do a study to see what the proportion of vaccinated people is in a certain…

A:

Q: America OnLine published a survey question. Among the 2,300 Internet users who responded, 20%…

A: From the given information, America OnLine published a survey question. Among the 2,300 Internet…

Q: We'd like to know the percentage of people living in California who owns a cell phone. How many…

A: It is given that margin of error (E) is 0.04 and the confidence level is 0.95.

Q: If you know the p-value for a one-sided test is 0.0080, using the same statistics you used for the…

A: Answer:- Given, The p-value for a one-sided test is 0.0080. We know that "The two-tail p-value is…

Q: Suppose you plan to conduct among 2,500 Grade 12 students enrolled in the stem Track. How many…

A:

Q: According to DATAUSA, the homeownership rate in Wilmington, DE is 60%. A random sample of 25…

A: Given data, n=25 p=60%=0.6 Standard error=?

Q: question in a poll taken in 2007 asked, "Do you think the penalties for underage drinking should be…

A: Given data, n=500 p=61% =0.61 Construct a 95% confidence interval?

Q: Previously, an organization reported that teenagers spend 8.5 hours per week, on average, on the…

A: Given information: The data represents the number of hours per week teenagers spend on the phone.

Q: A clinical trial tests a method designed to increase the probability of conceiving a girl. In the…

A: given data,n=666x=333p^…

Q: An ice hockey team is considering changing their team name and mascot and would like to measure city…

A: Voluntary response sampling means samples are self chosen. Which means people are volunteered to…

Q: A recent poll of 1500 new home buyers found that 60% hired a moving company to help them move to…

A: Here n = 1500. Let P = Sample proportion = 0.6 or 60% Now since n is very large and n*P > 10,…

Q: An article in a newspaper states that the proportion of traffic accidents involving road rage is…

A: The proportion of traffic accidents last year is 10%.

Q: b. The null and alternative hypotheses would be: Ho: ?v Select an answerv (please enter a decimal)…

A: We have given null and alternative hypothesis and test statistic and p- value..

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.