Wi-Fi Based on a poll conducted through the e-edition of  USA Today , 67% of Internet users are more careful about personal information when using a public Wi-Fi hotspot. What is the probability that among four randomly selected Internet users, at least one is more careful about personal information when using a public Wi-Fi hotspot? How is the result affected by the additional information that the survey subjects volunteered to respond?

Q: Researchers are concerned about the binge drinking behaviors at a local university among members of…

A: Given that, the population proportion, P is 0.31. From the given information, out of the 213…

Q: Fifty-eight percent of American adults eat at a table-service restaurant at least once a week.…

A:

Q: equiring photo identification has been a controversial practice in recent elections. According to a…

A: Given problem is binomial distribution Let X : Americans favor requiring voters to provide photo…

Q: tallied the number of survivors and missing persons. (a) If we randomly select someone who was a…

A: The table given below ,    Men Women Boys Girls Total Rescued 20 10 7 16 53 Missing 15 13 10…

Q: The table below displays the results of a survey of 72 people in an office building on whether or…

A: Provided information is, The table displays result of a survey of 72 people in an office building on…

Q: According to a 2013 study by the Pew Research Center, 15% of adults in the United Statesdo not use…

A: The binomial distribution is a type of a discrete probability distribution that gives a sequence of…

Q: Migraine medication was administered to patients in that 5% experienced weight gain as a side…

A:

Q: In a recent survey of a random sample of 437 California residents, 129 said they visited a state…

A: We want to find out the correct answer for given question

Q: Market-share-analysis company Net Applications monitors and reports on Internetbrowser usage.…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: In a particular survey of internet users, 3713 respondents say that they use social networking sites…

A: We want to find the probability

Q: Forty-three percent of Americans use social media and other websites to voice their opinions about…

A: From the provided information, The table can be constructed as:   Uses social media and other…

Q: Students in a school were surveyed about their study habits. Forty-two percent of students said they…

A: Let weeknight = A and weekends=B P(A∩B) =42100=2150 P(B) =47100 P(A∪B) = 65100=1320 P(A) =? (have to…

Q: Medical researchers followed 6272 Swedish men for 30 years to see if there was any association…

A: Given Data : Fish Consumption No Prostate Cancers Prostate Cancers Never/Seldom 110 14 Small…

Q: A telephone survey conducted by the Maritz Marketing Research company found that 43% of Americans…

A: Comment: As per the our company guideline we are supposed to answer only three subparts. Kindly…

Q: The Dow Jones Industrial Average has reached 27,164 points this week.  An investment advisor…

A: The probability that a stock she recommends is profitable is 0.40, which is fixed. Thus, we have a…

Q: A medical study testing a new drug for treating cooties gave the drug to one group and a placebo to…

A:

Q: Ten percent of the engines manufactured on an assembly line are defective. If engines are randomly…

A: Given: Let q be the percent of the defective engines manufactured on an assembly line. That is 10%…

Q: Forty-three percent of Americans use social media and other websites to voice their opinions about…

A: Note: Hi! Thank you for posting the question. Since your question has more than three sub-parts, we…

Q: Part-time Full-time Total No Gym Membership 16 48 64 Gym Membership 11 55 66 Total 27 103 130   A…

A: The given summary table is, The probability that the student has a gym membership and they are part…

Q: Q3/The Dallas-Fort Worth Airport claims that 80% of their flights are on time. If the claim is…

A: We have given that  n=25 , p=80%=0.80 X~Binomial(n=25,p=0.80)

Q: Market-share-analysis company Net Applications monitors and reports on Internetbrowser usage.…

A:

Q: The Cincinnati Enquirer reported that, in the United States, 60% of adults and 82% of youths ages 12…

A: Let X be a random variable following normal distribution with mean μ and variance σ2, i.e.,…

Q: Market-share-analysis company Net Applications monitors and reports on Internetbrowser usage.…

A:

Q: A Travel Weekly International Air Transport Association survey asked business travelers about the…

A: Given that, P=0.19 and n=950 We have to find P0.15<p<0.20

Q: How many subjects were included in the study? How many subjects did not use drugs? What is the…

A: The column totals are,   No (Did not use drug) Yes (Did use drug) Total Positive Test…

Q: Vision Correction A survey sponsored by the Vision Council showed that 79% of adults need correction…

A: Binomial distribution:The probability mass function for binomial distribution is,

Q: The table below shows the number of survey subjects who have received and not received a speeding…

A: The probability of union of two sets are given as, P(A or B) = P(A) + P(B) – P(A and B).

Q: The table below displays the results of a survey of 72 people in an office building on whether or…

A: Give that a survey of 72 people is conducted whether or not they favor a smoking ban in the…

Q: What is the probability of randomly selecting a member of the traveling public and finding out that…

A:

Q: Information was collected on those who attended the opening of a new movie. The analysis found that…

A:

Q: Forty-two percent of primary care doctors think their patients receive unnecessary medicalcare…

A: a. The given information is that random sample of 300 primary care doctors is taken. The percentage…

Q: ccording to a survey by Accountemps, 48% of executives believe that employees are most productive on…

A:

Q: Based on a​ poll, 67​% of Internet users are more careful about personal information when using a…

A: Consider a random variable X which represent the number internet users who are more careful about…

Q: In a national survey college students were asked, "How often do you wear a seat belt when riding in…

A: Here given freuency distribution table for number of student use seatbelt during car driven by…

Q: Social Networking In a Pew Research Center survey of Internet users, 3732 respondents say that they…

A: The total number of respondents is,

Q: A survey involving 400 likely Democratic voters and 200 likely Republican voters asked the question:…

A: Given that in a survey there were 400 likely Democratic voters and 200 likely Republican voters. So,…

Q: An article titled “You’re Eating That?”, published in the New York Times, discussed consumer…

A: a) Necessary conditions for binomial experiment: For each trial, there are only two possible…

Q: Forty-three percent of Americans use social media and other websites to voice their opinions about…

A: From the provided information, The table can be obtained as:   Uses social media and other…

Q: About 13% of the population is left-handed. If two people are randomly selected, What is the…

A: Solution:

Q: Which probability distribution would you use to calculate the probability of success or failure of…

A: Binomial random variable: When the random variable is discrete and counts the number of successes…

Q: Sixty percent of clowns aren’t funny.   If you randomly encounter three different clowns, what is…

A: Multiplication rule for independent events:If two events A and B are independent then the…

Q: Forty-three percent of Americans use social media and other websites to voice their opinions about…

A: Note: Thank you for the question. Since multiple sub parts are posted, according to our policy, we…

Q: In a national survey college students were​ asked, "How often do you wear a seat belt when riding in…

A: (a) The total number of college students who were questioned are : 102+348+541+1244=2235 The…

Q: What is the probability that a randomly chosen survey respondent is a male or chose "recreation" as…

A: There are totally 200 people are considered in which 96 are males, 62 are recreations, and 23 are…

Q: To better understand how husbands and wives feel about their finances, Money Magazine conducted a…

A: (1) Obtain the probability that she feels she is better at getting deals than her husband, given…

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.