Of 52 students, it was found that 15 were commuters. If one-quarter of the female students and one-third of the male students in the survey were commuters, then how many of males were surveyed?

Q: Suppose that a sample is to be taken without replacement from a finite population of size N. If the…

A: a) Sampling is without replacement scheme. The population size is N. Sample size is same as the…

Q: that there was no infection by that disease :in a town of 100,000 population is

A: Here given, Percentage infection of disease in country was 0.005 So  p = 0.00005  q = 1- p = 0.99995…

Q: In a survey of 3159 adults aged 57 through 85​ years, it was found that 86.2​% of them used at least…

A: Probability: Probability is a chance factor that occurs at every outcome of a random experiment. It…

Q: In a survey of 500 residents in a certain town, 274 said they were opposed to constructing a new…

A: The claim is that more than half of the residents are opposed to constructing a new shopping mall.…

Q: A small ice cream parlor has had great success over the past several years and is interested in…

A: Given information: Number of customers randomly selected in the sample, n = 56 Number of customers…

Q: In a poll of 531 human resource​ professionals, 53.9​% said that body piercings and tattoos were big…

A: Sample size (n) = 531 Out of which 53.9% said that body piercings and tattoos were big grooming red…

Q: In a certain village 20% of the population is literate, and assume that 150 investigators take a…

A: Given,n=10p=0.2q=1-p=1-0.2=0.8X=no.of literates in the sampleX~Binomial (n=10 , p=0.2)P(X=x)=cxn px…

Q: Out of a sample of 38 people, 23 people enjoyed biking and 15 enjoyed running. Test the claim that…

A: Given that,  x = 23, n = 38 The sample proportion of people prefer biking is, Null and alternative…

Q: In a survey of four-year colleges and universities, it was found that 222 offered a liberal arts…

A: Four year degree colleges and universities to be surveyed, A= No. of liberal art degree colleges and…

Q: n 1995 a magazine reported the results of a poll of adult Americans in which it asked, "Have you…

A:

Q: A labour analyst surveys a random sample of 40 females and 40 males who are currently not working…

A:

Q: How many ways can a researcher select 5 rats from 10 rats and assign each to a different test?

A: It is given a researcher select 5 rats from 10 rats and assign each to a different test.

Q: A group of 50 teachers and school administrators attended a convention. If any two persons are…

A: Solution: Let x be the number of teachers.

Q: A group of 107 people were polled about their common means of transportation. Fifty of them said…

A: We use the Venn diagram to solve the given question.

Q: In a CBS News survey done in 2006, 88% of n = 348 randomly sampled married men said that they would…

A: Given that  Sample sizes n1=348 , n2=584 Sample proportion p1^=0.88 , p2^=0.84

Q: IN A CITY 250 MEN OUT OF 750 WERE FOUND TO BE SMOKERS. DOES THIS INFORMATION SUPPORT THE CONCLUSION…

A:

Q: According to a poll conducted by the Gallup Corporation in March 2011, the metropolitan areas with…

A: Given, according to a poll conducted by the Gallup Corporation in March 2011, themetropolitan areas…

Q: Results of a survey of fifty students indicate that 30 like red jelly​ beans, 29 like green jelly​…

A: Given, Total students n(S)=50 Students who like red jelly beans n(R)=30 Students who like green…

Q: Suppose that a sample of 1200 people in the USA revealed that 125 of them are left- handed. Then the…

A: The population represents the total number of people considered such that the result of a sample…

Q: If only 15% of people asked to mail in a survey respond, this is an example of

A: Given that  Only 15% of people asked to mail in a survey respond.  We know that  Response bias :…

Q: A pollster randomly selected 4 of 10 available people. How many different groups of 4 are possible?

A: Given,   A pollster randomly selected 4 of 10 available people.   The objective is to find how many…

Q: In a recent small survey of airline passengers, 27 said they had flown American in the last year, 23…

A: We will use  Addition theorem for  3 set

Q: If six out of ten individuals in a population carry a gene for a defective enzyme, how many…

A:

Q: Your town does a study and finds that 3 in 5 dogs have licenses. If there are 250 dogs in town, how…

A: In the given study it has been found that 3 in 5 dogs have licenses. The probability that the dogs…

Q: In a survey of 120 people, it was found 65 read Newsweek magazine, 45 read Time magazine and 42 read…

A:

Q: A survey is conducted on the use of Facebook of adults in the United States, where 12,000 adults are…

A: Population of a survey means the entire group on which we are taking survey. Sample is a specific…

Q: music professor offers his 40 students the option of coming to an additional rehearsal session…

A: **  It is a type of observational study. Such type of study become bias. Because positive and…

Q: - In a survey of 500 students of a college, it liked watching hockey and 62% liked watc

A: Given, in a survey of 500 students of a college, it was found that 49% liked watching football, 53%…

Q: How many of the 3088 subjects used at least one prescription​ medication?

A: Number of adults aged 57 through 85 years in a survey, n = 3088 p be the probability that an adult…

Q: A survey of 600 school employees yielded the following information: 325 were instructors, 442 were…

A: Given data, instructors= 325 full-time faculty=442 instructors were full-time faculty=255   No of…

Q: In a study of children, a total of 1,548 children were examined. Of these, 1,017 had rickets. Of the…

A:

Q: Suppose that a survey of five- year olds, 45% liked the letter A, 51% liked the letterB, and 48%…

A: Given that P(liked letter A)=45%=0.45 P(liked letter B)=51%=0.51 P(liked letter C)=48%=0.48 P(liked…

Q: In a sample of 310 people, 186 completed only high school, 24 completed only some college, 93…

A: Given data A sample of 310 people is given. 186 completed only high school. 24 completed only some…

Q: Suppose that insurance companies did a survey. They randomly surveyed 450 drivers and found that 300…

A: Part a:          x = 300         n = 450         p' = 300/450 = 0.6667   Part b:  X is the number of…

Q: In a study of children, a total of 1,560 children were examined. Of these, 1,018 had rickets. Of the…

A:

Q: What proportion of 20% of defective items should a supervisor in the quality system of a plastic…

A: a) What proportion of 20% of defective items should a supervisor in the quality system of a plastic…

Q: Hello. Can I get help on how to work this problem? Thank You!

A: Given information:Denote the event “A student owns a cat” as A.Denote the event “A student owns a…

Q: We are interested in determining if absences from a class affect your overall class grade. The…

A: Simple linear regression model: A simple linear regression model is given as y^ = b0 + bx + e…

Q: A survey of a magazine's subscribers indicates that 50% own a home, 80% own a car, and 90% of the…

A: Givensubscribers own a home = 50%subscribers own a car = 80%subscribe own a car given that they own…

Q: A nuclear power station is to be built on one of 20 possible sites. A team of engineers is…

A:

Q: A serving for brand recognition is done and it is determined that 68% of consumers have heard of…

A: Solution: Let X be the number of consumers who recognize the dull computer company and n be the…

Q: A survey conducted by the Bureau of Labor Statistics found that 67% of high school graduating class…

A: Let A denotes the student in the high school graduating class went on to college and B denotes…

Q: In a survey of 3367 adults aged 57 through 85​ years, it was found that 84.2​% of them used at least…

A: A survey of 3,367 adults aged 57 through 85​ years. There is 84.2​% of them used at least one…

Q: After a hard-fought football game, it was reported that, of the 11 startingplayers, 8 hurt a hip, 6…

A: The total members in the team P are 11, i.e., P=11. Let Adenote the event, that a player has broken…

Q: According to an​ almanac, 60​% of adult smokers started smoking before turning 18 years old. ​(a) If…

A: Given Information: proportion p=60%=0.60 (a) If 300 adult smokers are randomly selected, how many…

Q: She is interested to use this table to do a test of independence with a level of significance of…

A: Solution: Given data:   Ethnicity   Seat belt  worn Hispanic Non-Hispanic Total Yes 30 149…

Q: Assume that 135 surveys are completed. Of those surveyed, 61 responded positively to effectiveness,…

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.