Method 1: recruit volunteers who are willing to participate. randomly assign each participant to exercise with a training partner or to exercise alone. Method 2: Select a random sample of people from all the people who exercise at a community fitness center. Ask each person in the sample whether they use a training partner, and use the response to create the two groups.  Describe the population of generalization if method 1 is used. Explain the answer.  Describe the population of generalization if method 2 is used. Explain the answer.

It is not important to collect samples randomly. True or false

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

Find the Margin of Error, if we are asked for 90% confidence interval where the mean is 52.3, the standard deviation is 2.15 and the sample size is 136.

You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. how many randomly selected air passengers must you​ survey? assume that you want to be 90% confident that the sample percentage is within 3.5 percentage points of the true population percentage. Assume that nothing is known about the percentage of passengers who prefer aisle seats. n= Round to the nearest integer.

A coach is interested in how many slam dunks the average college freshman at his university can do. Ten volunteers from the senior class step forward. After observing their performance, the coach concluded that college seniors can do an average of 10 slam dunks in a row without missing. what is the sample? what is the population?

Hi, please find the sample for each random number. choosing an odd number from 1 to 11 at random.

Imagine that you own a coffee shop in downtown Toronto. You think it's time to expand to a second location in a different part of the Greater Toronto Area. However, you need to make sure that the second location you have selected will be as popular with customers as your current location. You want to do a survey. You know you can't ask everyone, so you need to ask a sample. PART 1: What process should you follow to select your sample? choices are simple, systematic, stratified, and cluster sampling. PART 2: What is the best way to administer your survey to make sure you get enough responses to give you a good representative sample?

The response rate of a survey is the proportion of all people who were selected but did not complete the survey.    True  False

Identify the type of sample ( Experimental or Observational) Then tell if the sample is biased 5. A researcher wants to select ten students for a survey. Each student’s name is placed in a hat and 10 names are selected.