In a recent Gallup poll, 1003 randomly selected adults in the United States were asked if they have a gun in their home, and 37.2% of them answered “yes”. What is the number of respondents who answered “yes”?

Q: A survey of 1000 college students yielded the following information: 396 students favored capital…

A: (a)   Given: A survey of 1000 college students yielded the following information: 396 students…

Q: 4. Based on the survey conducted to 1200 respondents, I out of 3 Filipinos can't live without cell…

A:

Q: Of 52 students, it was found that 15 were commuters. If one-quarter of the female students and…

A: Let, x be no of male students y be no of female students Given, x+y=52  -->1 15 were commuters.…

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: If you use the Internet, have you ever paid to access or download music? This was one of the…

A: The sample size = 1003 From the sample, the information we have, No. of adults do not use internet =…

Q: The State Superintendent of Schools consistently states that the average salary of all substitute…

A: Given Information: Sample size (n) = 8 The state superintendent of schools states that the average…

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

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

Q: At the college of science department in a university, 150 were surveyed and 20 of them were found to…

A:

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

A: The degrees of freedom for treatment (k-1) is 3.

Q: Netflix is interested in determining if there is a difference in the proportion younger adults (ages…

A: Let n1 and n2 be the sample size of young and old people respectively. n1=120 n2=100 Let x1 and x2…

Q: Suppose that a poll taken 10 years ago found that 56% of parents spank their children. Suppose a…

A: In a poll 10 years ago it is found that 56% of parents spank their children.

Q: 40. Of 1,000 people consulted, 811 liked chocolates, 752 liked toffees and 418 nd

A: Given problem Given that   Method 1 :

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: According to the Pew Research Center,on the propotion of the American population who use only a…

A: A)Verifying the conditions:It is given that, the proportion of the American population who use only…

Q: Last year, 41% of business owners gave a holiday gift to their employees. A survey of business…

A: Given Information : Population proportion , p = 0.41. Sample proportion , p⏞ = 0.32. Number of…

Q: A taste-testing survey of Zing Farms showed that 2/3 of the people surveyed preferred the taste of…

A:

Q: A random study reported that 74% of very-low-birth-weight babies graduate from high school by age…

A: Given that, The probability of very high low birth weight babies graduate from high school by age 20…

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: According to the Pew Research Center,on the propotion of the American population who use only a…

A: Solution:Part(D):Finding the test statistic value for the hypothesis test for…

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: A random sample of 180 men who took the driving test found 103 passed. A similar. sample of 225…

A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…

Q: Among college students, the proportion p who say they’re interested in their congressional…

A: Given:  Among the college students the proportion p who say they’re interested in their…

Q: The U.S. Department of Transportation, National Highway Traffic Safety Administration, reported that…

A: Given,n=50x=33p^=xn=3350 =0.66α=0.05

Q: A researcher claims that the percentage of voters that favor voting via absentee ballot is 35%.…

A: It is given that the researcher claims that the percentage of voters that favor voting via absentee…

Q: According to a 2019 survey by Sleepopolis, 34% of American adults sleep with some form of "comfort…

A: Let the random variable X be the number of American adults sleep with a comfort object from sample…

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: According to a recent Pew Research Center report, many American adults have made money by selling…

A: Given Data: x=914 n=4579   p^=xn=9144579=0.1996

Q: Among college students, the proportion p who say they're interested in their congressional…

A:

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: Among college students, the proportion p who say they’re interested in their congressional…

A: From the provided information, Sample size (n) = 250 From which 180 students say they’re interested…

Q: A sociologist sampled 200 people who work in computer-related jobs, and found that 42 of them have…

A:

Q: In a marketing study, 100 consumers were asked to select the best digital music player from the iPod…

A: Given Information: Total number of consumers = 100  Type of digital music players =  iPod Touch,…

Q: Based on a sample survey, a company claims that 75% of their customers are satisfied with their…

A:

Q: 5.)  A survey found that 86% of Americans have never been a victim of crime.  If a sample of 12…

A: Let X denote the no.of Americans have never been a victim of crime and it follows binomial…

Q: A survey was conducted at UP Manila where 80 students were randomly asked whether they liked…

A:

Q: Supposed that in the past, 10% of women in the Philippines have severe dysmenorrhea. Do we have…

A: Followings are the answer of the questions The following information is provided: The sample size is…

Q: For its "music 360 "survey, nielsen co asked teenagers and adults how each group has listened to…

A: (a)   Determine whether the binomial setting can be applied or not.   The given experiment is…

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

A: The summary of statistics is, The degree of freedom is, Critical value:   Using the t-table, the…

Q: Last year 46% of business owners gave a holiday gift to their employees.  A survey of business…

A: Consider that p is the true proportion of business owners plan to provide a holiday gift to their…

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: in a survey of 14 college students, it was found that 9 were taking an English class, 7 were taking…

A: We can solve given problem by Venn- diagram:

Q: analyzing the success of driver’s license applicants, the state finds that 58.3% of those examined…

A:

Q: According to Inc.com, 71% of job seekers used social media in their job search in 2018. Many believe…

A: The answer is given in the below image. Please let me know if there something needs to be added.

Q: A U.S. Census finds that 58.5% of women are employed. A county commissioner thinks that a larger…

A: From the provided information, Sample size (n) = 1000 From which 622 are employed, so sample…

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.