You randomly selected one sample of 40 citizens of your city to see if they wanted to increase taxes for education but you decided that you would do half younger people and half older people. Explain your answers. Is this random sampling? Is this simple random sampling?

Q: Suppose I was interested in a snapshot of the number of persons leaving a grocery store today to…

A: 1) Suppose I was interested in a snapshot of the number of persons leaving a grocery store today to…

Q: A recent graduate chooses 4 continents to visit from the 7 in the world. What is the size of the…

A: A recent graduate chooses 4 continents to visit from the 7 in the world total=7 choose =4

Q: The average age of the MBA students in a statistics class is 30.7 years old. The ages of five…

A: Given data: 36, 25, 25, 29, 30.

Q: Explain the three methods of selecting a simple random sample

A: When the sample is selected randomly and every element of the population has an equal chance of…

Q: In your "Introduction to College Mathematics" class last semester, the instructor gave four tests.…

A: Given Scores90, 86, 70 , 80Possible sample size will be 1,2,3,4The data has been entered into excel…

Q: What is Random Sampling?

A: Random sampling: A simple random sample of size n is collected from a large population where each…

Q: What do you mean by Random Sample?

A:

Q: each score in a random sampling distribution represents what

A: We have given that  We have to define each score in a random sampling distribution :

Q: What is a random sample?

A: Here use definition of random sample

Q: Suppose that you have a fair coin and you label the head side as 1 and the tail side as 0. a. Now,…

A: Given: Let X be Bernoulli distribution representing 1 as heads and 0 as tails. P (Heads) = p = 0.5…

Q: what do you call this sampling technique?

A: Posting a question on the internet to know about something

Q: When you throw a dice twice, what is the size of the sample space?

A:

Q: Snoopy Brown is interested in the number of businesses that do not allow dogs in St. Paul, MN. To…

A: Snoopy Brown is interested in the number of businesses that do not allow dogs in St Paul, MN. To…

Q: Explain in your own words: What is sampling error? What is a representative random sample?

A: we explain in the following.

Q: researcher decided to study the dietary habits of community college students. She did so in a way to…

A: Solution: The sampling methods can be classified into two types 1) Probability or random sampling…

Q: Suppose that we will randomly select a sample of n= 94 elements from a population and that we will…

A: From the given information, n=94 and p=0.8 n(1-p)=941-0.8              =18.8

Q: In a simple random sampling, all samples of a given are equally likely. Is this true in systematic…

A: In a simple random sampling, all the samples are equally likely. Each element in the sample have…

Q: A market researcher obtains a sample of 50 people by standing outside a store and asking every 20th…

A: Here the sample size n = 50 A researcher obtains data from every 20th customer.

Q: Suppose that in a large class at a major university, the instructor announces that the average grade…

A: Given information- We have given the average grade on an exam = 72 Since we know that from the…

Q: What is the difference between a random sample and a simple random sample

A: The difference between a random sample and a simple random sample is,Random sample:Random sample is…

Q: Kim Kardashian is interested in studying the phenomenon of selfies more deeply.  She randomly…

A: It is very difficult for the researchers to examine each of the individual units that consist in the…

Q: recent poll reports that between 53% and 59% of voters will vote for president george in the next…

A: The confidence interval is (53%, 59%).

Q: In simple random sampling, all samples of a given size are equally likely. Is that true in…

A:

Q: Amanda is writing an article for the school newspaper about social media use among teens. She wants…

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

Q: The secretary in a statistics department would like to estimate how much coffee to brew per day such…

A: From the following data we have to calculate mean, standard, and confidence interval

Q: what is a sampling error?

A: Description of parameter and statistic:A characteristic that describes population is called a…

Q: When does random sampling occur?

A: It is a sampling technique to choose the desired number of samples from the population. The types of…

Q: Suppose you want to know how much students in Greek organizations study per week, on average.You…

A: Simple random sampling: Simple random sampling is defined as a method of sampling in which, a sample…

Q: What sampling method is used when a statistic student did a research on the time spend by grade11…

A: Simple random sampling: A procedure for selecting a sample of size n out of a finite population of…

Q: Describe the definition of random sample

A: The random samples can be defined as the samples which are randomly selected from the population and…

Q: What is mean of the Sampling Distribution of the Mean?

A:

Q: What is difference between random sampling and random assignment?

A:

Q: A school board want student input to help decide what playground equipment to replace. Someone…

A:

Q: 3. In your own words, thoroughly explain how a sampling distribution of a sample can be constructed

A: Sampling Distribution: Sampling distribution describes the manner in which a statistic or a function…

Q: The reason why samples are selected at random is

A: We know that  Random sampling :  Selecting a sample randomly from the population . By selecting…

Q: What will happen to the mean of the sampling distribution of the sample means if the sample size…

A: Definition of sampling distribution: If X have any distribution and  sample size is sufficiently…

Q: What is another kind of sampling error you might see in a poll besides random sampling error?

A: The total error of the survey estimate results from the two types of error.  Sampling error.  Non…

Q: The subscribers to a magazine are numbered. Then, a sample of these people is selected using random…

A: We have given that,  The subscribers to a magazine are numbered. Then, a sample of these people is…

Q: A follow-up study will be conducted with a sample of 20 people from the 300 people who responded yes…

A: Hey, there! Thanks for posting the question. We consider the number of people said yes is 210 (in…

Q: You want to gather some data about students at a local high school. Match the name of the sampling…

A: given

Q: A 2016 episode of the NPR program "This American Life" featured a radio show host from Tigerville…

A: a) Given: n=150, x=55 The estimated proportion of people in Tigerville that support Trump is given…

Q: Question 4 Coach Smith wants to know whether students would pay for the privilege of parking their…

A: Simple random sampling is a sampling technique where every item in the population has an equal…

Q: A community college wants to find out how students enrolled in remote courses feel about remote…

A: From the given information, It is required to make focus group for all those students who are…

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.