Sampling Resources

Sampling technique help

The manager of an arena wants to learn more about the financial status of the people who will attend a rock concert. She would like to survey a representative sample of the more than 20,000 fans in...

This question was a part of my test and I don't understand it. I think it might be sampling but I am not sure

There are 25 ducks, each duck having different running speeds. What is the minimum number of duck races required to determine the 3 fastest ducks with the provisions of every duck race followed by...

I have two samples of the same population and wish to reduce the sample sizes, but maintain the same ratio of precision produced in the original samples. I suspect I can take the square root of the...

A researcher positions herself on a street corner asks 1 person in 5 who walks by to be interviewed. She continues doing this until she has a sample of 250. How likely is she going to achieve a representative...

Assume your sample contained 1000 liters of water and the volume of Meadow Lake is 125,000,000 liters. How many blue fish would you find in the whole lake if you found 7 in your sample?  ...

a. A researcher wants to know about the spending habits of teenagers in the community. The researcher randomly telephones 100 people to inquire about their spending habits. b. The student council...

The critical z-value(s) (rounded to two decimal places) for (α )alpha = 0.02, assuming a normal population is 2.05.   True or False

The critical z-value(s) (rounded to two decimal places) for (α )alpha = 0.02, assuming a normal population is 2.05.   True or False

I wanted to know the sampling size of a population where size is low and moreover it doesn't follow a normal curve. Moreover I wanted to roll out quality numbers at monthly level as the weekly...

I have a target to reach 100 school children (“at-risk-of-a-specific-behaviour”; out of 1000 school pupils) and change their behaviours in certain aspects. The problem is that the subject is a taboo...

Sampling Sampling is a fundamental aspect of statistics, but unlike the other methods of data collection, sampling involves choosing a method of sampling which further influences the data that you will result with. There are two major categories in sampling: probability and non-probability sampling. Probability Sampling Under probability sampling, for a given population, each... read more