imagine you have 113 friends on facebook and you want to chose a simple random sample of 20 of them.  Describe in detail how you would select your simple random sample.

Q: Identify the sample space for a couple having four children.

A:

Q: Determine whether you would take a census or use a sampling process to find the average age of the…

A: A survey, which tries to include all of the population units in the sample, is defined as census.

Q: Given the sample mean, frequency and probability. Find the number 4 and 5 in the second picture.

A: Given Information: Population consists of 2, 6, 8, 0, 1 Sampling distribution of sample means:…

Q: You want to know what percentage of students own pets at your university. In asking 10 random…

A: In an observational study, researcher observes the individuals and measure the outcomes. In this…

Q: List all the 21 sample.

A: Data set, 2,5,6,8,10,12,13 Tere are 21 ways to select samples of size 5.

Q: lease answer question a and replace the sample section of 20 with 30.

A: Given Information: Sample size n=20 Mean μ=1.8 Standard deviation σ=0.5

Q: Parking at a large university has become a very big problem. University administrators are…

A: Population: The population of interest includes all the individuals of interest. The overall group…

Q: Suppose you wanted to know the proportion of students who wear glasses on campus and you went ahead…

A: you wanted to know the proportion of students who wear glasses on campus  you went ahead and survey…

Q: Identify the population and the sample

A: here survey of 1248 american household founds that 91% of the household own DVD recorder here sample…

Q: Take a random sample of 50 pages from a book and estimate the proportion of all pages that contain…

A: Here we want to find proportion of pages that contain figures.

Q: Suppose you want to find a simple random sample of 75 questions out of the entire population of…

A: Here the entire population contains N = 3631 questions. A simple random sample of size n = 75…

Q: The names of all 152 students in a professor's class are written on identical slips of paper, and…

A: Simple random sample:  Every member and set of members have an equal chance of being included in the…

Q: A circus operator randomly picked 5 day from the month of august to see how many people purchased…

A: Sample is the items randomly drawn from the population.

Q: Determine whether the sample is biased or unbiased

A: Given a situation, we need to find whether it is biased or unbiased.

Q: Give 5 sample problems for Elimination of Arbitrary Constant (Differential Equation). Provide step…

A:

Q: 11) A manufacturer of cellular phones has decided that an assembly line is operating satisfactorily…

A: Solution: Population:  A population is a group of items or things or persons under study is known as…

Q: The names of all 50 students in a class are written on identical slips of paper, and the slips are…

A: The sample can be drawn from population in different ways. Some of the basic sampling methods are…

Q: 9) A survey of 1688 American households found that 14% of the households own at least two bicycles.…

A: Solution 9:  A survey of 1688 American households found that 14% of the households own at least two…

Q: Use the following frequency distribution table to determine how many subjects were in the study. Xf…

A: Given information- We have given the following frequency distribution table. x f 5 2 4 4 3…

Q: Ms. Scott, the principal of Phoenix High School, was conducting a survey about student's impressions…

A: Cluster sampling: Cluster sampling is defined as a method of sampling in which, at first, the entire…

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: i need 20 to be 30 for the sample section

A: The mean is 1.8 and the standard deviation is 0.5.

Q: Find an article of your choice which uses proportions, and copy and paste the address of that…

A: The objective of the question is to understand the concept of sample proportions and how they are…

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: 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: Raymond wants to estimate the percentage of parents that use cloth diapers. He asks a randomly…

A: According to the provided information, The data set will represent the collection of response…

Q: A recent study attempted to estimate the proportion of Florida residents who were willing to spend…

A:

Q: If you periodically collect samples of 25 undergraduates, how much will the sample mean vary from…

A: Consider X as a random variable that denotes the cost of attendance for undergraduates in the US.…

Q: The Centers for Disease Control (CDC) want to study the effects of lead exposure on children.  They…

A: Population is the set of all subjects of interest and the sample is the subset of the population.

Q: A national forest service wanted to estimate the number of deer in a particular national park. They…

A: Solution-Let there are total x deer in the park.They cotton tag 71 deer and release him back into…

Q: Identify the population being studied and the sample chosen. The final exam scores of 44 out of the…

A: Solution: Sample is the subset of population. Population is the entire set of units under study.

Q: You work for a consumer watchdog publication and are testing the advertising claims of a tire…

A: Given life spans are: 48,989   42,327   28,497    38,566    33,197    40,419   41,497…

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: The local university is interested in how many of it's students plan on using some of the new…

A: Given Total number of students = 3000 Number of students who will receive a questionnaire out of…