A survey asks: Which online services have you used in the last month: - Twitter Facebook - Have used both The results show 30% of those surveyed have used Twitter, 76% have used Facebook, and 18% have used both. What percent of the people surveyed used neither Twitter nor Facebook?

Q: A random sample of 100 high school students was surveyed regarding their favorite subject. The…

A: State the hypotheses.

Q: (a) What percentage of people has an IQ score between 70 and 130? (b) What percentage of people has…

A:

Q: (a) What percent of respondents feel that their body weight is about right? (b) What proportion of…

A:

Q: In a survey of 500 human resource professionals, 70% said that the appearance of a resume is very…

A: Use simple formula

Q: In a survey, editors of a magazine asked 200 people whether or not they smoke and whether or not…

A:

Q: Nolan surveyed 7 teachers from each academic department at school. Each department has an equal…

A: Given: 7 teachers from each academic department surveyed Each department has an equal number of…

Q: In 2010, the Physicians Foundation conducted a survey of physicians’ attitude about health care…

A: The survey was sent to total 100,000 physicians.

Q: - How many students are playing football? . Which sports obtained the highest number of students…

A: The histogram for the distribution of Favourite School sport is given. Note : Since you have asked…

Q: Mrs. Bollo's second grade class of 30 students conducted a pet ownership surve Results of the survey…

A:

Q: urvey asked a group of adults and youths if they prefer reading books printed o per or electronic…

A:

Q: A math teacher researches the relationship between 7th and 8th grade involvement in speech and…

A: The total number of students in the 8th grade is, 19+21=40

Q: 13. If 27 out of 30 people passed a driving test, what percent failed?

A: Given Total people = 30 Passed people= 27 So ,failed people= 30-27 = 3

Q: A survey asked a random sample students if they estimated they spent more or less than an hour a day…

A: Given that   More  less  7th grade  24 25 8th grade 28 26 We have to find the number of…

Q: 8. Toastmasters International cites a report by Gallop Poll that 40% of Americans fear public…

A: As per the guidelines we are allowed to solve maximum of 1 question. If you need help with another…

Q: 5. Several college students are surveyed about their college location and preferred locations for a…

A: Given  total number of students who prefer beach are 91. Total number of students who prefer skiing…

Q: 3. Toastmasters International cites a report by Gallop Poll that 40% of Americans fear public…

A:

Q: A May 2001 Gallup Poll found that many Americans believe in ghosts and other supernatural phenomena.…

A: Given information: Number of randomly selected adults n=1591 The given number of people who…

Q: (a) What percentage of people has an IQ score between 90 and 110? (b) What percentage of people has…

A: Given that  Mean = 100 and  SD = 10

Q: Question 25, problem in photos!

A: Obtain the proportion of the 8th graders has cell phones:Total number of 8th graders is, 291…

Q: A research report from an independent-measures study states that there are significant differences…

A: From the provided data we have, Degrees of freedom between group = k-1 = 2  Thus, k = 3 Degrees of…

Q: In a fishing lodge brochure, the lodge advertises that 75% of its guests catch northern pike over 20…

A:

Q: Workplace Attire In a survey conducted by Opinion Research Corporation, 1000 adults were asked to…

A: a)The ‘percentage or %’ represents ‘divide by 100’.

Q: Close Confidants and Social Networking Sites A study1 has been conducted in which 2006 randomly…

A: Given Sample size =n1=947 Sample size =n2=1059 X1bar=2.5 X2bar=1.9 Sample standard deviation s1=1.4…

Q: Let p1 be the proportion of people in Country A coping with depression, and let p2 be the proportion…

A: Given information, Let p1 be the proportion of people in Country A coping with depression, and let…

Q: A school survey asked 20 questions about student characteristics and interests. State whether each…

A: Note:- Many a times, type of data would depend on the specific application as to how the data is…

Q: Snoring After surveying 995 adults, 81.5% of whomwere over 30, the National Sleep Foundation…

A: a)

Q: A group of 220 college students who took math last term were interviewed. They were asked whether…

A:

Q: For the survey method to be valid, a representative sample of peoplemust be polled. T or F?

A: The survey methodology essentially involves the study of individuals (or a specified group of finite…

Q: 3) Two hundred students were surveyed and asked about what they prefer to eat for lunch. The table…

A: As per honor code guidelines I need to solve  only one question.

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: A population is normally distributed with µ = 90 and σ = 8. For this population, which is the 29th…

A: Solution-: Given: μ=90,σ=8 We want to find 29th percentile?

Q: A survey shows the following results: n = 50 where 32 subjects have a Facebook account, 20 subjects…

A: Obtain the probability of no Facebook.   The probability of no Facebook is obtained below as…

Q: A survey was administered to 1000 Broward college students. 30% of the respondents indicated that…

A: Let x denotes number of students who prefer online classes over face to face classes and n denotes…

Q: 64% of students entering four-year colleges receive a degree within six years. Is this percent…

A: We have find hypothesis..

Q: 14) A reporter claims that less than one in four Americans believe that Facebook acted…

A: Given: Sample size, n is 1280 The number of respondents believed that Facebook act inappropriately,…

Q: In an advanced ballet dance class, it is claimed that 42% of dancers can successfully perform a…

A: Given: Sample size, n=27 No. of dancers can successfully perform a double pirouette turn, x=13

Q: 5. A study attempted to estimate the proportion of Florida residents who were willing to spend more…

A: Population: Population consists of the complete subjects that are included in the study for making…

Q: A survey asked participants if they liked vanilla ice cream, chocolate ice cream, both, or neither.…

A: Given that: Percentage of people liking vanilla, P(V)=44%=0.44Percentage of people liking chocolate,…

Q: A local doctors office recorded the wait times for 70 patients on a saturday afternoon and organized…

A: Total People = 70 Given Histogram

Q: A Pew poll taken in 2010 surveyed 830 people aged 18-29 and found that 166 of them had one or more…

A: State the hypotheses.

Q: In some states, a driver of a vehicle may not use a handheld cell phone while driving. In one state…

A:

Q: A marketing manager for Nike purchased a 30 second time slot during the Super Bowl for advertising…

A: Given information: The data represents the observed values of the two categories Opinion and Ad…

Q: Anews service conducted a survey of 1049 adults ages 18 years or older in a certain country. August…

A: Given, The results of a survey, On the basis of the results, we need to say the research objective,…

Q: A group of 175 college students who took math last term were interviewed. They were asked whether…

A:

Q: A random sample of 40 students from each grade level was surveyed regarding their preference for a…

A: I have given an answer in step 2.

Q: Sierra College students enrolled in an online Elementary Statistics course were asked to participate…

A: Given : Out of the 152 students who answered this question, 20 responded "a desktop computer" , 121…

Q: A survey asks: Which online services have you used in the last month: • Twitter • Facebook • Have…

A: Solution: Let A be the event that a person use Twitter and B be the event that a person use…

Q: survey asks: Which online services have you used in the last month: • Twitter • Facebook • Have used…

A:

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.