20. Judgmental sampling is a form ofconvenience sampling in which thepopulation elements are selected basedon the judgment of the researcherTrueFalse21. The normal distribution is the mostimportant distribution in biostatistics. Itis frequently called the Gaussiandistribution.TrueFalse

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A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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1. You are going to ask people if they like ice cream, recording the answer Yes or No. You are going to ask until someone says Yes or you have asked four people. Write out the sample space for this random phenomenon.
If a researcher uses random sampling, the sample will definitely be representative of the population. a) True b) False
A process of drawing a sample is called Sampling Census O Both Onone
7. Researchers at the University of Mississippi wanted to determine whether the reaction time (in seconds) of males differed from that of females to a go/no go stimulus. The researchers randomly selected 20 females and 15 males to participate in the study. As described, is this an example of independent or dependent sampling? Explain your answer.
8. The local florist serves 24 schools. The owner wants to interview a sample of 4 principals in detail to find ways to improve services to his/her clients. To avoid bias, the owner chooses a simple random sample size 4. Briefly explain how you could choose a simple random sample. Give an example.
3. In your own words, thoroughly explain how a sampling distribution of a sample can be constructed
A fruit vendor wants to check 25 apples as sample out of 500 apples by using systematic sampling technique. Which of the following are first 5 correct samples? a. 18, 38, 58, 78 96 b. 15, 35, 50, 70, 90 c. 1, 21, 31, 51, 71 d. 14, 34, 54, 74, 94
Please I need help with these questions!!!
When the Bureau of Labor Statistics conducts a survey, it begins by partitioning the United States adult population into 2,0072,007 groups called primary sampling units. Assume that these primary sampling units all contain the same number of adults. If you randomly select one adult from each primary sampling unit, is the result a simple random sample. Why or why not?
In what is specific type of a sampling technique every 40th member of the population may particularly be selected?
Five state officials are listed to the right. Lieutenant Governor (L) Secretary of State (S) Attorney General (A) Representative (R) Press Secretary (P) a. List the 10 possible samples (without replacement) of size 3 that can be obtained from the population of five officials. b. If a simple random sampling procedure is used to obtain a sample of three officials, what are the chances that it is the first sample on your list in part (a)? the second sample? the tenth sample? a. List all 10 possible samples (without replacement) of size 3. Use the letter abbreviation for each official. (Use a comma to separate answers as needed.) b. What is the chance that the first sample in your list is selected? Type an exact answer.) What is the chance that the second sample in your list is selected? Type an exact answer.) What is the chance that the tenth sample in your list is selected? (1)

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20. Judgmental sampling is a form of convenience sampling in which the population elements are selected based on the judgment of the researcher O True False