Based on the Nielsen ratings, the local CBS affiliate claims its 11 p.m. newscast reaches 41% of the viewing audience in the area. In a survey of 100 viewers, 36% indicated that they watch the late evening news on this local CBS station. What is the sample proportion?

Q: Given the following sample data, determine which value is in the 77th percentile 89, 64, 11, 33, 60,…

A: Data given  89,64,11,33,60,44,45,31,48,47,63,82,19,71,83,63

Q: Out of 300 students in the school, 225 passed an exam. What would be the mean of the sampling…

A:

Q: In a sample of 550 students, 80% prefer online resources versus printed materials. The standard…

A:

Q: As part of a recreation planning survey at a park, questions are asked of all persons visiting the…

A: In census survey, all units in the population are enumerated. That is, enumeration of all units in…

Q: A researcher decided to gather data from all 150 employees in a certain office instead of just…

A: A certain office has 150 employees. All of them are selected by a researcher to gather data from.

Q: An entertainment company surveyed 360 elementary school children and found that 153 of them were…

A: There are 153 out of 360 (n) elementary school children found as above grade level readers. The…

Q: Which type of sampling method is used in the following? 20 people from each dorm are asked to fill…

A: In simple random sampling, the samples are chosen at random from the whole population. In cluster…

Q: How many pupils from each year should be selected to give a stratified sample of 10%?

A: here use basic of stratified sampling method  sample size from each strata  = total sample sizetotal…

Q: Read the description below and determine the method of sampling. Ask four classmates to rate the…

A: Answer is  Convenience

Q: A newspaper posted this question on its​ website: "How often do you seek medical information​…

A: Voluntary response sample:If the sample made up of volunteers or self-selected participants then the…

Q: When a researcher who is studying "serious tennis players" asks 200 people if they qualify as this…

A: In the following problem Convenience Sampling is to be used

Q: A 2015 Gallup poll of 1,627 adults found that only 22% felt fully engaged with their mortgage…

A: Here the sample size is number of adults.

Q: Determine the test statistic and p-value for Ho: p = 0.5 versus H3: p # 0.5 wh 225 and the sample…

A: Given that  Null hypothesis (H0) : P=0.5 Alternative hypothesis (H1) : P≠0.5 Sample size (n) = 225…

Q: b)  If the sample size was increased to 10,000 American movie-goers, what effect would this have on…

A:

Q: Suppose that your sample size was 37, what is P(t<-1.74) (Negative 1.74)?

A: Given information- Sample size, n = 37 t-score = -1.74 We have to find the p (t&lt;-1.74). Degree of…

Q: From the sample statistics, find the value of p1 - p2, the point estimate of the difference of the…

A:

Q: Why is a sample proportion generally used to estimate a population proportion instead of obtaining…

A: Population proportion: The proportion that is calculated from the population which has a specific…

Q: Given 1,400 freshmen students with 600 male students and 800 female students, describe the way you…

A: The population is of freshmen students =1400The number of male students in  Strata-1 =600The…

Q: According the April 12, 2017 Pew Research survey, 58% of Americans approve of U.S. missile strikes…

A: Given that  58% of Americans approve of U.S. missile strikes in Syria

Q: For the sampling distribution of the mean, o = o. O True O False

A: From the provided information, Sampling distribution of the mean σx̄ = σ

Q: When Rich calculated the sample mean in Part 2, he mistakenly used the numbers 20, 25, 13, 9, 15,…

A: Given numbers are 20, 25, 13, 9, 15, 11, 17, 17, 30 Sample mean = Total sum of given numbersTotal of…

Q: In a survey of 671 subjects, each was asked how often he or she watched TV. The survey subjects were…

A: Voluntary response sampling: In voluntary response sampling, the respondents select themselves into…

Q: Consider the sample data: 125, 115, 112, 127, 112, 105.

A: Data set: 125, 115, 112, 127, 112, 105

Q: When working with the sampling distribution of a sample proportion, what do we need to require to…

A: Sampling Distribution of a Proportion There are several ways to calculate the sampling distribution…

Q: A researcher studying the proportion of 8 year old children who can ride a bike, found that 219…

A: Given: n= 567 ,x= 219.0 Need to find sample proportion.

Q: After a Sampling Plan is developed- what are the steps in sampling?

A: Sampling: In statistical analysis, the sampling is defined as selection of subjects from the…

Q: In a sequential sampling plan, the first, second, third and fourth units are good, good, defective,…

A: answer is explained below

Q: estimate the sample size for a population of 750 people.

A: To estimate the sample size the required calculation can be defined by the formula  Slovin's…

Q: An event marketing executive thinks that the proportion of consumers who have seen his company’s…

A: In general terms, the larger the sample size n, the more precise of an estimate can be obtained of…

Q: A medical researcher wants to do a study on the proportion of knee replacement surgeries that result…

A:

Q: What is the value of the standard score for the sample proportion?

A: If mean if the proportion us P And standard deviation is √(pq/n) Then standard score or Z score for…

Q: Find the midrange for the given sample data.

A: Given: Time (X) 14 21 27 38 47 57 61 67 74 75 85 93 132 152

Q: When calculating the sample size for a research study, a researcher should always round the final…

A: The statement is true.

Q: Why a sample size of n=100 is more likely to have a percentage of pop songs closer to the population…

A: Sample of size 32 or greater is consider as large sample .

Q: If we wanted a random sample of students in a cafeteria, why couldn't we just take the students who…

A: Answer: Here random word itself says that we couldn't just take the students who order coke with…

Q: should their sample size be?

A: here use solvin's formula

Q: In a poll of 1000 randomly selected voters in a local election, 415 voters were against school bond…

A: #Ans -  Given,           In a poll of n = 1000 randomly selected voters in a local election, x = 415…

Q: A geography student in Parkville, Missouri is conducting a housing survey, including questions about…

A: It is given that she knows that about 38% of the people in Parkville live in apartments, and wants…

Q: Is there any bias in the survey question? Explain    What do you think would help students pay…

A: Given survey question: What do you think would help students pay attention in class?

Q: A marble manufacturer advertises that its bags of marbles will contain 25% "milky-white" marbles.…

A: In the context, the sampling percentage of milky-white marbles, p̂ is 25%. The total number of…

Q: Describe the sampling distribution for the sample means

A: Given, n=100 μ=55 σ=20

Q: A newspaper posted this question on its​ website: "How often do you seek medical information​…

A: Answer is given below:

Q: How do you find the stardard deivation for a sample proportion?

A: The sample proportion is p, suppose.  Find q which is equal to 1-p Finf the sample size = n

Q: What does a sampling distribution serves?

A:

Q: Explain the four different types of sampling and give an example of each.

A: Different types of sampling methods with examples.Types of random samplings(1) Simple random…

Q: If a survey of a movie shows that 50% of all people who like the movie, enjoyed the official movie…

A: Introduction: Population of interest: The population of interest includes all the individuals of…

Q: In an AOL survey of Internet​ users, this question was posted​ online: "Have you ever been hit by a…

A: Given: The question posted online is: Have you ever been hit by a computer​ virus? Among the​…

Q: Define a test procedure, based on sample data, for deciding whether to reject H0?

A: Explanation: t-test for population mean:

Q: Which type of sampling method is used in the following? All students living on each floor of a…

A: In simple random sampling, the samples are chosen at random from the whole population. In cluster…

Q: Suppose 420 randomly selected people are surveyed to determine whether or not they subscribe to…

A: Given that, 420 randomly selected people are surveyed to determine whether or not they subscribe to…

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.