A researcher wants to know what percentage of people who live in Germany are satisfied with their government. Surveys are sent to people who live in the city limits of Berlin, Frankfurt, and Munich of Germany.

Q: in the U.S, 37% of households have dogs, 30% of households have cats, and 7% of households have both…

A: Addition rule of probability:Addition rule of probability indicates the happening either of the…

Q: In a poll of 2900 adults in a certain country, 1595 of the adults believed that the Olympics should…

A: Let the number of students who believe to be restricted to be x

Q: What fraction of survey respondents identified themselves as Republicans? What fraction of survey…

A: As per our guidelines, we are allowed to answer first three sub-parts only. Thanks Given :

Q: A study published in 2007 attempted to estimate the proportion of Florida residents who were willing…

A: Proportion is almost similar to the concept of probability. Proportion is a fraction of a population…

Q: 70  guests at a hotel called for room service and 255 guests did not call for room service. what is…

A: Given that the total number of guests called for room service  = 70           Total number of guests…

Q: Among the people in the age class "18 - 24", what is the percentage of people who prefer "Soft…

A: Given that Number of people who prefer soft drinks and in the age class 18 - 24 = 90 Number of…

Q: Find the Fan Cost Index for the Atlanta United.  Team Ticket Other Drink Soft Drink Hot Dog Parking…

A: Introduction - Fan cost index - The fan cost index is a sports statistics that has been around for…

Q: Researchers asked 200 families whether or not they were homeowners and how many cars they had. Their…

A: We can answer the question from the table of data as below.

Q: A survey of 225 residents of a neighborhood indicates that 135 of them are in favor of having a…

A: Given, total residents = 225 135 are in favor of block party.

Q: The International Brotherhood of Slide Whistlers wants to conduct a survey to find what proportion…

A: Let COnfidence interval be 90% Zc=1.645 E=3%=0.03 p=0.5 n=?

Q: Loras Tyrell was curious to see if his students actually saved money by purchasing books from…

A: From the given output : Population Mean,μ = 12.75 Population Standard Deviation,σ =…

Q: One month is what percentage of a year, given that there are 7 days in a week, 4 weeks in a months…

A: One month is what percentage of a year,  given that there are 7 days in a week, 4 weeks in a months…

Q: Americans who believe the government should ensure basic health care is _________% with a margin of…

A:

Q: The state transportation commission counted cars traveling east and west across a toll bridge. The…

A:

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

A: It is given that the numerator (treatments) degrees of freedom is 2 and the denominator (error)…

Q: (b) What is the proportion of wolves that are female but do not hunt in medium-sized packs o are not…

A: Hi, the question have the multiple sub-parts and as per the guidelines I am obliged to answer first…

Q: A survey of 150 people revealed that 115 people like ketchup on their hot dogs, 85 people like…

A: Concept of General Addition Rule: For any two events A and B the General Addition Rule state that:

Q: 41 percent of young adult males play video games. 39 percent of young adult males have a full-time…

A: It is given that, 41% of young adult males play video games i.e. P(young adult pay video games) =…

Q: Keiko asked 15 students how many courses they have taken so far at her college. Here is the list of…

A:

Q: As preparation for designing a new line of business wear, a clothing manufacturer asked a large…

A: (a) The color chosen approximately by one fifth of the customers is White. (b) Approximately 30% of…

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

A: From the provided information, The degree of freedom for treatment (k – 1) = 3 A) The required…

Q: What is your favorite sport to watch on television? What percentage of people surveyed are females…

A:

Q: A company took a survey about its new product. 7,200 people liked the new product and 800 people did…

A:

Q: A management survey for a company surveyed 235 employees. 105 of the employees surveyed were…

A: Given, Number of employees= 235 Female employees= 105 Male employee % =?

Q: What percentage of students guessed between 41 and 44

A:

Q: An industrial/organizational psychologist wants to improve worker productivity for a client firm,…

A:

Q: The Arizona Department of Transportation wishes to survey state residents to determine what…

A: Solution-: Given: M.E.=0.03,α=0.01, We take, p^=0.5 and  q^=0.5  We find how many residents do they…

Q: A Correctional Psychologist wants to compare the number of criminal convictions of Persons Deprived…

A: Given information: The data represents the values of the variables number of criminal convictions,…

Q: A long distance race begins with 28 runners from Team A and 28 runners from Team B. 4 runners from…

A: We have to solve given Questions.

Q: a pollster plans to improve survey results by only conducting polls in which the margin of error is…

A:

Q: A politician is Interested in the proportion of voters in his district that think he is doing a good…

A: Given dataA politician is intrested in the proportion of voters in his district thet thinkhe us…

Q: Assume that 30% of city employees in Carson City ride the bus to work. Answer the following…

A:

Q: You have a bag of marbles that contain 292 green, 239 red, 76. Blue, and 209 yellow ones. What is…

A: You have a bag of marbles that contain 292 green, 239 red, 76. Blue, and 209 yellow ones. What is…

Q: The following table shows the results of a survey of authors by a (fictitious) publishing company.…

A:

Q: In a survey of 331 registered voters, 158 of them wished to see mayor waffleskate lose her next…

A: We have to find point estimate for proportion.

Q: What proportion of students either own an automobile or lives in a dor

A: From the given information, P(own an automobile)=0.60 P(lives in a dormitory)=0.20 P(own an…

Q: Miami University’s colors are white and red. There has been a recent movement on campus to change…

A: Given information: Sample size of people who voted to keep the colors white/red n1=892 Sample size…

Q: Out of 1000 people surveyed, 850 said they like chocolate.  What proportion of people surveyed said…

A: Given: The total number of people surveyed is 1000 850 people said they like chocolate We have to…

Q: a skeptical paranormal researcher claims that the proportion of Americans that have seen a UFO, p,…

A: It is given that the skeptical paranormal researcher claims that the proportion of Americans that…

Q: Miami University’s colors are white and red. There has been a recent movement on campus to change…

A: Given information: Total number of people included in the survey, n = 892 Number of votes for…

Q: A school knows that 38% of its incoming students own a smart phone and a tablet. What percent of…

A: Let S be the set of students with smartphone and T be the set of students with tablet Percentage of…

Q: Jason reads a report that says 80% of U.S. high school students have a computer at home. He believes…

A: Given- p=claimed proportion =80%=0.8   and   n=sample size=60 To check- The conditions are satisfied…

Q: The following table shows the results of a survey of authors by a (fictitious) publishing company.…

A:

Q: b. In a Pew Research Center poll on driving, 58% of the 1182 respondents said that they like to…

A: Step 1. (b) Total number of respondents is study =1182.

Q: According to the U.S. Department of Labor, as of May 2009 the median annual salary for a physical…

A: Assume X be the random variable representing the annual salary of a physical therapist (in dollars).…

Q: A box truck rental service offers trucks in multiple sizes for people who are moving. If a 10-foot…

A: We have, a box truck rental service offers trucks in multiple sizes for people who are moving such…

Q: Among survey respondents who thought the economy was getting better, what fraction were Republicans?…

A: Instruction : "I only need help with the last 2 please" Given : Total respondents  =651

Q: Suppose that the result of a public opinion poll shows that just 10% of people would be willing to…

A:

Q: Suppose that a polling organization surveys n = 400 people about whether they think the federal…

A: Let p is  defined as the population proportion of people say that the government should provide aid…