Find the point estimate for the population proportion.             A Southern student wants to know the proportion of American adults who speak two or more languages.  She randomly surveys 888 Americans and found that 355 spoke 2 or more languages.             Estimate the proportion of all Americans who speak 2 or more languages.

Q: Of the 1800 students at Harrison Middle School, 35% made the honor roll last semester. How many…

A: It is given that  Total students N = 1800 P = proportion of students made honor roll last semester =…

Q: 5.) Ms. Cyrus has 64 songs on her phone. Two- fifths of the songs are R&B songs. The rest are jazz.…

A:

Q: In 2016 the Better Business Bureau settled 77% of complaints they received in the United States.…

A: Since you have posted a question with multiple subparts, we will solve first three subparts for you.…

Q: About 25% of the population watches the evening television news coverage as well as the soap operas.…

A:

Q: In a survey 500 adults were interviewed, 150 said they had early medical checkup. Find the 95% for…

A: Givensample size(n)=500No.of adults said they had early medical checkup(x)=150p^=xn=150500=0.30

Q: 00 subjects were studied and 120 of them expressed a preference for brand x, what percentage…

A: The 200 subjects were studied; n=200 120 of them expressed a preference for brand x; x=120

Q: speech therapist gave a patient an assessment to test articulation. The patient pronounced 5 test…

A:

Q: Approximately 19% of music lovers like Country Music. Of those who do, 99% do not have mild brain…

A:

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: Report the proportion of the 370 students based on mobile phone brands as a percentage. Apple  269…

A: The percentage of a category can be calculated by dividing the frequency of the category by the…

Q: The sixth grade students in Mrs Schoeners awesome math class were surveyed on their favorite…

A: Number of student participated in the survey 50 Percentage of student choose soccer 60% Therefore…

Q: Of the 328 patients that completed the survey last year, 211 of them claimed to be returning…

A: Given: 328 patients completed the survey 211 patients returning

Q: Eight hundred student took a 90-point standardized examination. After the examination, the students…

A:

Q: A local politician running for school board wants to know where he is ranked in the polls before the…

A: This question is part of sampling methods for political party. Since it is rarely possible to poll…

Q: Martha Quinn is interested in the proportion of fast to slow songs she will play today.  She takes…

A: In this method of selection, each song have equal probability of getting selected and the selection…

Q: a survey found that 75,000 people own a car. This was 75% of the respondents in the survey. What was…

A: Given data: The given people that own a chair are C=75,000. The given percentage is p=75%.

Q: A recent survey found that 79% of Americans use the Internet. If a city has a population of 76,000,…

A: Population of city, p=76,000 Percentage of population that uses internet is 79%.

Q: In a survey of 1536 adults, 36% responded "yes" to the survey question. How many adults answered…

A: From the provided information, Sample size (n) = 1536 36% responded “Yes” to the survey question.…

Q: In a recent study, 46% of people enjoy country music.  If 200 people are surveyed about their…

A: Given : Proportion (prop.) of people enjoy country music p = 46% = 0.46 Sample size of people n =…

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

A:

Q: When 445 junior college students were​ surveyed, 135 said that they have previously owned a…

A:

Q: among students of a certain university 38 like peanut butter, 34% like nutella, and 12% like both.…

A: It is given that:Proportion of students like peanut butter: Proportion of students like nutella:…

Q: Out of 32 students in a class 5 said they ride their bike to school. Based on these results how many…

A: Unitary method : It is a method by  first determine the value of single unit and then determine the…

Q: In a crop of blueberries, there will be an average of 6500 berries with stdev = 318 %3D berries. The…

A: Given : Mean , μ= 6500 standard deviation, σ = 318

Q: A. Ventura is interested in determining what kinds and how many pets people own in Bakersfield. He…

A: Given data: 1, 1, 2, 2, 2, 1, 1, 3, 2, 3, 1, 1, 1, 2, 2, 4, 4, 2, 2, 1, 1, 1, 5, 4, 3, 4, 1, 1, 1,…

Q: If a child psychologist wanted to determine if there is a relationship between gender of a child and…

A: Chi-square test of independence should be used here.

Q: A group of 125 college students are surveyed about their note taking and study habits. Some results…

A:

Q: A small insurance company is known for providing automobile insurance but also provides homeowner's…

A: Null Hypothesis: H0: There is no association between whether an automobile insurance customer has…

Q: The World Health Organization analyzed generic drugs in 45 countries. It collected 3,575 samples.…

A: Given data: The World Health Organization analyzed generic drugs in 45 countries. It collected 3,575…

Q: Approximately 63% of American adults drink coffee. Let's take a sample of 43 American adults. Find…

A:

Q: 30% of Grandpa Neil's stamps have images of flags on them. If he has 75 flag stamps, how many stamps…

A: In question, Given that 30% of Grandpa Neil's stamps have images of flags on them. If he has 75 flag…

Q: A test question is good if it discriminates between prepared and unprepared students. The first…

A:

Q: Approximately 25% of music lovers like Country Music. Of those who do, 5% have mild brain damage.…

A: Given: 25% of music lovers like Country Music. Of those who do like Country music, 5% have mild…

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.