Kim Kardashian is interested in studying the phenomenon of selfies more deeply.  She randomly selects 20 of her Instagram followers' feeds.  For each selected feed, she records the number of selfies posted in the past year and the number of people in the foreground of the picture.  What is the sample of this study?

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: In order to get patients opinion about the services provided to them by a hospital, a sample of 500…

A: A systematic type of sampling is the sampling in which every kth member is selected to gather a…

Q: A statistics professor wants to know how her students feel about an introductory statistics course…

A: Cluster sampling: In cluster sampling the whole population is divided into different sections or…

Q: Hello, How do you set up and solve? Thank You!

A: Variance of the sampling distribution of the proportions:Consider p-hat as the sample proportion and…

Q: Students in a high school statistics class wanted to see if the distribution of the colors of a…

A: From the provided information, Test statistic = 12.59 The p value is 0.05.

Q: To predict the outcome of an election, 2500 likely voters are randomly selected to take a survey.…

A: Random Sampling It is the sampling technique where each unit of the population has an equal chance…

Q: A statistics student wants to examine if there is a difference in the commute times for students and…

A: The five-number summary statistics is a basic statistics, which includes, minimum value, lower…

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: Week 10 Question 1 If you decide whether you want to see a new film or television program on the…

A: Samples are chosen from the population using a sampling technique because it is possible to study…

Q: The article "Facebook Use and Academic Performance Among College Students"† estimated that 87%…

A: It is given that the population proportion is 0.87. In the survey the sample proportion van be…

Q: Is a statistics class' delivery type a factor in how well students do on the final exam? The table…

A: 1. In the given study, the comparison is based on more than two means. Hence, we should one way…

Q: The sample should include men and women.

A: Margin or error = 0.02 z-critical value at 0.05 = 1.96

Q: Baseball Player Births In his book Outliers, author Malcolm Gladwell argues that more baseball…

A:

Q: Q1. Before conducting a two-factor analysis of variance, a professor wants to know how many unique…

A: As per our guidelines, we are allowed to answer first question only. Thanks   Q 1) Two factors are…

Q: What is a random sample?

A: Here use definition of random sample

Q: What is the name of this type of sample?

A: In the method of convenience sampling, the individual samples are easily determined and do not…

Q: Explain the Representative Sample from a Population in Which the Variables Are Related?

A: The population is the area of interest for which, one want to inquire the characteristics or trend.…

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

A:

Q: Forty-two percent of primary care doctors think their patients receive unnecessary medicalcare…

A:

Q: Modern Managed Hospitals (MMH) is a national for-profit chain of hospitals. Management ants to…

A: a) sampling technique is best described by this scenario is systematic sampling because whole…

Q: A study shows that 80% of students in a school love to listen to music while studying, with a…

A: Given : A study shows that 80% of students in a school love to listen to music while studying, with…

Q: At what N does a sample start to resemble a population?

A: When the sample size is equal to the population size. then we can say sample start to resemble a…

Q: In 2016, the Honors College at a large state university claimed that the average GPA of its…

A: The hypotheses are; H0: M ≥ 3.80 Ha: M < 3.80 This is a lower-tailed test.

Q: What is the population and sample of this study?

A: We want to know population and sample in given example.

Q: Is there an association between hair colour and body type? The table below shows the results of a…

A: O E (O-E)^2 (O-E)^2/E 72 60.27331 137.5154 2.28153 83 74.37394 74.4089 1.00047 52 62.76165…

Q: how do you find the simple random sample of 15 restaurants?

A: In simple random sampling each member of the population has an equal chance of being included in the…

Q: The table on the right table s of adults (from many sample

A: According to the sum, A table is given of the probability distribution of the number of adults who…

Q: Car owners are advised to rotate their tires to ensure even wear. Unfortunately, many ignore this…

A: Given information: The investigator is specially interested to test whether or not the flat tire…

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: 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: Suppose we are now interested in taking random samples of 800 US adults instead of 150 and…

A:

Q: Wendy recorded the eye colors of the people who have already signed up for a lecture on genetics.…

A:

Q: A school district wanted to compare ACT scores between two of its schools (school A and school B).…

A: Given information: The dot plots for school A and school B are given

Q: In a large department store, the owner wishes to see whether the number of shoplifting incidents per…

A: Given claim: There is a difference in the number of shoplifting incidents before and after the…

Q: What does a sampling distribution serves?

A:

Q: A sample of 426 U.S. adults age 50 and older were asked how important a variety of issueswere in…

A: Introduction: A population in Statistics is defined as the collection of all possible objects,…

Q: Consider the data scores; 7, 10, 14, 19, 25. What is Q3 ?

A: First we have to arrange the data score in ascending order. Next we find the Q3 by using formula.

Q: a radio talk show host asked listeners to respond either yes or no to the question,  is the…

A: Population: Population consists of the complete subjects or individuals of interest that are…

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 researcher uses random sampling, the sample will definitely be representative of the…

A: Solution: The given statement is “If a researcher uses random sampling, the sample will definitely…

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: School administrators wondered whether class size and grade achievement (in percent) were related. A…

A: Given data, X Y X*Y X*X Y*Y 15 85 1275 225 7225 10 90 900 100 8100 8 82 656 64 6724 20 80…

Q: Illustrate the shape of the sampling distribution of r? In what way does the shape depend on the…

A:

Q: A television station wishes to study the relationship between viewership of its 11 p.m. news program…

A: Given, Observed frequency (o) table : a) Null  and alternative hypothesis H0: Observed value equal…

Q: For each scenario listed below, determine whether the scenario represents an Independent Samples or…

A: Independent samples: This generally deals with unrelated samples. They are selected at random such…

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: In an activity, students are pulling marbles from a large jar containing blue and red marbles. In…

A: We need to identify suitable sample size

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: Please answer the following multiple choice question. View attached image to see the question

A: Identify the true of false for the given data. The correct option is identified below: From the…

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.