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: ording to the Bureau of Labor Statistics (BLS), the median weekly earnings for men in the sales and…

A: Given data :  $627, $617, $732, $735, $639, $569, $494, $566, $648, $767, $683, $604, $727, $896,…

Q: A 2016 Pew Research poll found that 18% of cell phone owners use their phone for conducting…

A: It is given that the total number of cell phone uses are 18%, thus the population proportion is…

Q: It is thought that 47% of respondents in a taste test would prefer Brand A. In a particular test of…

A: Given that  p = 47% , p^ = 44% , n = 250

Q: 61.3% of all Americanslike pepperoni on their pizza. Is this a parameter or statistic? Why?

A: Parameter is a numerical measurement that describing a characteristic of a population.

Q: An assembly line inspector is interested in determining if there is an equal proportion of “Type-A”…

A: Explanation: 1. Since, The inspector is interested in determining if there is an equal proportion of…

Q: Claim: more than 55% adults would erase all of their personal information online if they could. A…

A: The question is about hypo. testing Given : Randomly selected no. of adults ( n ) = 456 Sample prop.…

Q: Find the test statistic for this hypothesis test. z= (Round to two decimal places as needed.)

A:

Q: Complete the following sentence. Pencil Color Number Distributed Color Preference Frequency red 4…

A: Frequency of colors are given in the distribution table. To find the probability of preferring…

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

A:

Q: student decides to spin a dime and determine the proportion of times it lands on heads. The student…

A: We have given that  Sample size n = 25 Favorable cases x =17 Population proportion p =0.5

Q: Health insurance benefits vary by the size of the company (the Henry J. Kaiser Family Foundation…

A: a:For the given data, the chi-square test for association is appropriate.Null Hypothesis:H0: The…

Q: The college placement office is developing a model to relate grade point average (GPA) to starting…

A: The question is about correlation.Given :To find :Test whether there a linear relationship between…

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

A: Given n=408 P=0.5 P-cap=0.59

Q: An economist wondered if people who go to the movies on weekdays go more or less often on Fridays…

A: Given that  Sample size n=50 Favorable cases x =14 Sample proportion p^=x/n  =14/50 =0.28

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

A:

Q: please help: A case-control study was conducted to assess the association between exposure to…

A: Given that: Total number of cases in a sample = 55 Total number of controls = 2820 Number of exposed…

Q: The success status of 300 students who took the university exam from 3 different cities is as…

A:

Q: Twittering away The Pew Internet and American Life Project asked a random sample of 2253 U.S.…

A: Given Information: Sample size n=2253 Sample proportion p^=0.19

Q: Days before a presidential election, an article based on a nationwide random sample of registered…

A: Given Information:  Percentage of registered voters = 52% ± 3%

Q: Freelance reporter Irwin Fletcher is examining the historical voting records of members of the U.S.…

A: The following table has been provided.AntecedentConsequentSupport for A and CConfidenceLift…

Q: A hypothesis test is conducted to determine whether the percentage of US adults that think marijuana…

A: Given,n=400x=144p^=xnp^=144400=0.36

Q: A survey for brand recognition is done and it is determined that 45% of consumers have heard of Dull…

A: Given that the percentage of consumers who have heard of dull computer companies is 45%The number of…

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

A: From the provided information, The hypotheses are as follow: H0: p = 0.50 H1: p > 0.50

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

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

Q: Are Republicans less likely than Democrats to display the American flag in front of their residence…

A: Consider that p1, p2 is the true proportions of Republicans and Democrats, who display the American…

Q: According to a report on consumer fraud and identity theft, 22% of all complaints for a year were…

A: Z test for one proportion has used.

Q: A random sample of Montreal students in 1996 included 210 students who intended to live in Montreal…

A: Given Data: p^=252252+148=0.63n=400   Null and Alternate Hypothesis: H0: p=0.6 H1: p≠0.6

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: In 2013, 46% of high school students tried a tobacco product. From a survey of 500 randomly…

A: Given : Population proportion =46% n=500

Q: Four scenarios of statistical studies are given below. Decide which study uses a population…

A:

Q: A marketing agency wanted to determine if a new commercial changed people's opinion about a company.…

A: Statistical hypothesis means the decision about a population parameter. Here we look at the data we…

Q: A researcher wants to see if police officers’ enthusiasm for their jobs changes after having endured…

A: The objective of the question is to identify the appropriate statistical test to compare the job…

Q: At St. Luke's hospital in 1998, 674 women were diagnosed with breast cancer. Five years later, 88%…

A: It is observational study Total 674 women After 5 years 88% of Caucasian women and 83% of African…

Q: a Pew research center surveyed ask adults in the United States which technology would be very hard…

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

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

A: Given;-   Claim: Most adults would erase all of their personal information online n= 454 56% of them…

Q: Another question asked for a ranking of the condition of the road, based on the type of road. For…

A: In this case, the test is to check whether there is some relationship between the type of road and…

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

A: The hypothesized proportion is 0.50 and the sample proportion is 0.57.

Q: Public Agenda conducted a survey of 1379 parents and 1342 students in grades 6-12 regarding the…

A: Solution: Given information: n1= 1379   Sample size of parents n2= 1342   Sample size of students…

Q: 56% of students entering four-year colleges receive a degree within six years. Is this percent…

A: as per guideline expert have to answer first 3 subparts only. upload other separetely.    given data…

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.