You are doing research on students and you are interested in looking at the differences among freshmen, sophomores, juniors and seniors in terms of their favorite brands of clothing.  You ask your friends to circulate your survey in their classes.

Q: A personal trainer is trying to decide which type of workout plan to recommend. He is considering 3…

A:

Q: Felicia is conducting a survey to determine the determine the favorite TV show among her community.…

A: Stratified sampling: In stratified sampling the whole population is divided into two or more…

Q: A personal trainer is trying to decide which type of diet plan to recommend. He is considering 3…

A: A personal trainer is trying to decide which type of diet plan to recommend. He is considering 3…

Q: A student wants to determine the proportion of times a spun penny will land on heads. She spins a…

A: Solution: Given that: A student wants to determine the proportion of times a spun penny will land on…

Q: a stratified random sample? WO ber the students from 1 to 2000 and us ey the first 100 students to…

A: Stratified sampling is a process of random sampling. It is used to divide a population into…

Q: A university is polling its students. It selects 200 students at random in the same proportions as…

A: Stratified random sampling is a process of sampling which uses different groups of the population…

Q: college faculty consists of 400 men and 250 women. The college administration wants to draw a sample…

A: Given:  Population is devided into two groups men and women  No of men N1= 400  No of women N2= 250…

Q: uppose you take random samples from the following groups: freshmen, sophomores, juniors, and…

A: Stratified Random Sampling: The population is divided into subgroups then some members are chosen…

Q: what is sampling methods?   A large social media company wants to survey its users about their…

A: Sample is a small part (or) portion of the population. For example, to check the weights of male in…

Q: entering your work cafeteria and are approached by an individual to participate in their study by…

A: Given that  You are entering your work cafeteria and are approached by an individual to participate…

Q: Nationally, 83% of Americans have earned a high school diploma.  We want to see if the proportion of…

A: We have to find sample proportion.

Q: What sampling techniques should be used while establishing if someone is happy or not?

A: Here we want to establish sampling technique if someone happy or not.

Q: Your research methods class has been given an assignment to measure the student body of your…

A: In sampling, a subset is selected from a population for analysis and research. In some cases, the…

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: How many ways are there to rearrange the letters in the word STATISTICS?

A: We have given the word STATISTICS We have to find a number of ways are there to rearrange the…

Q: You want to estimate the proportion of all passengers who survived the Titanic. You do not have time…

A: The table is:

Q: The Department of Health is conducting random drug testing in a barangay in relation to their age.…

A: Given information: It is given that the department of health is conducting random drug testing in a…

Q: Describe a scenario explaining how to find the mean of a sampling distribution and how to calculate…

A: Solution-: Describe a scenario explaining how to find the mean of a sampling distribution and how to…

Q: Doesn't sound too bad, but which of the following values for the standard deviation would indicate…

A: HERE COMPARE Z- SCORE FOR FINDING WORST SCORE

Q: Imagine that you own a coffee shop in downtown Toronto. You think it's time to expand to a second…

A: There is a coffee shop in downtown Toronto.The owner thinks it's time to expand to a second location…

Q: A personal trainer is trying to decide which type of workout plan to recommend. He is considering 3…

A:

Q: Online gamers are divided into different age groups. A random sample from each group is selected and…

A: From the given information we want to know method of sampling.

Q: Explain one possible advantage of using a paired sample instead of independent samples.

A: Paired samples, are also known as dependent samples, can be defined as the samples in which natural…

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: Interpret calculator display: In a recent poll, people were asked whether they supported an increase…

A: Given

Q: Harley Davidson motorcycles make up 13% of all the motorcycles registered in the United States.You…

A: Approximate distribution is normal

Q: habit Sample Distribution 150- 100- 50- 0- 150- 100- 50- 0- 2.5 5.0 weight I 7.5 10.0 12.5 nonsmoker…

A: > x = c(61159, 57524,56186,52254,54884,51869,29743,39877,50086,53672,65707,73861) > x [1]…

Q: ve bi

A: It would be better if we enquire with all students, when the strength of class students is little.…

Q: What do you understand by random sampling?

A:

Q: Explain the EFFECT OF SAMPLE SIZE.

A: The size of our sample defines how much information we have and thus, in part, decides our precision…

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: Explain about if larger the sample size, what does this reflects.

A:

Q: If we took three different samples of college students (one from California, one from Arizona, and…

A: The samples are derived of 500 students from three cities, city C, city AR and city AL.

Q: You want to obtain a survey from households across the U.S. To obtain the survey you separate the…

A: You want to obtain a survey from households across the U.S. To obtain the survey you separate the…

Q: Discuss the sampling method that you think was used for this research

A: Four types of sampling methods: Random  : samples choosen randomly, every member of population has…

Q: Given 1400 freshmen students with 600 male students and 800 female students, describe the way you…

A: It is an important part of statistics. It is widely used.

Q: Q.No.3. Explain the advantage of mutiple sampling plan over single or double sampling. Answer:

A: Multiple sampling plan is an extension of single and double sampling plan.

Q: 2. A scientist is studying the effect of exercise on blood pressure. He studie 20 people who…

A: An observational study is a study where a researcher uses observed information to learn or study…