Which of the following is an example of simple random sampling?O A. In order to determine how funds for a library should be allocated, every fifth patron of the library is surveyed about the resources that they use.O B. A teacher in a small class wants to know if their students have completed their homework. They randomly select row 2 and row 4, and all thestudents seated in row 2 and row 4 are called to present their work to the class.O C. To study the opinions on a certain fashion trend, a magazine interviews select fashion designers.O D. To study opinions about the service provided by an airport, a researcher in the airport hands out a questionnaire only to travelers that are sittingnear their gate and avoids travelers who are in a hurry.O E. To determine the recent quality of service in a hotel, a random number generator is used to generate a value between 0 and 1 for every guest thathad stayed in the hotel within the previous month. The guests with the 50 smallest generated numbers were then contacted with an opinion surveyabout their stay.

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Answered: Which of the following is an example of…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A survey is conducted from a population of people of whom 40% have a college degree. The following sample data were recorded for a question asked of each person sampled, "Do you have a college degree?" Complete parts a and b. No Yes No Yes No No Yes No No No Yes No No No No Yes No No Yes No No Yes No No a. Calculate the sample proportion of respondents who have a college degree. The sample proportion of respondents who have a college degree is (Type an integer or a decimal.) 22: No No Yes No No Yes
Three coins are tossed. List all the elements in the sample space. {TTT, TTH, THT, THH, HTT, HTH, HHT, HHH} {TTT, TTH, THT, THH, HTT, HTH} {TTT, TTH, THT, THH} { HTT, HTH, HHT, HHH}
Identify the sampling techniques used in each scenario. c. In order to choose the winners of free tickets to the campus concert, student housing printed out all 60 pages of student ID and then chose three of the pages randomly.
In a study with 5 groups, 6 samples each group, what are the degrees of freedom for the total, group, and error, respectively? a. 29, 5, 25 b. 29, 25, 4 c. 29, 5, 24 d. 29, 4, 25
Race organizers want to survey the participating runners on the quality of the running course. Which of the following uses systematic random sampling? Select the first 15 finishers and the last 15 finishers to take the survey. Randomly select 15% of the male participants and 15% of the female participants. Select the 5th finisher (with the number 5 being randomly chosen) to survey, then survey every 15th finisher after that. Sort all of the runners' names alphabetically, then randomly choose 2 letters and survey all participants whose last name begins with one of those letters.
Our local movie theater polls its customers about their favorite candy to eat during the movie. Name each sampling method described. a. Employees ask every 45th customer that purchases a movie ticket b. An employee divides the theater into sections: left, right, front, back. He/she randomly chooses a section and polls every customer within that section
A sports franchise knows that 81% of their season ticket holders attend every home game. The collect a random sample of size 250 from among last year's season ticket holders. How likely are they to find that 200 or fewer attended every home game? a. .657 b. .800 c. .343 d. .500
Superpowers A total of 415 children from the United Kingdom and the United States who completed a survey in a recent year were randomly selected. Each student's country of origin was recorded along with which superpower they would most like to have: the ability to fly, ability to freeze time, invisibility, superstrength, or telepathy (ability to read minds). The data are summarized in the following table. Country U.K. U.S. Fly 54 45 Freeze time 52 44 Invisibility 30 37 Superpower 20 23 Superstrength Telepathy 44 66 a. What proportion of students in the sample are from the United States? b. Find the distribution of superpower preference for the students in the sample using relative frequencies. c. What percent of students in the sample are from the United Kingdom and prefer telepathy as their superpower preference?
need help
.A particular industrial product is shipped in lots of 50. Testing to determine whether an item is defective is costly; hence, the manufacturer samples production rather than using a 100% inspection plan. A sampling plan constructed to minimize the number of defectives shipped to customers calls for sampling five items from each lot and rejecting the lot if more than one defective is observed. (If the lot is rejected, each item in the lot is then tested.) If a lot contains four defectives, what is the probability that it will be accepted? * 0.855 O 0.755 0.655 0.955
-n list on 22 cion 23 -tion 24 stion 25 stion 26 estion 27 estion 28 estion 29 K 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 1.5 percentage points of the true population percentage. Complete parts (a) and (b) below. a. Assume that nothing is known about the percentage of passengers who prefer aisle seats. n=0 (Round up to the nearest integer.) b. Assume that a prior survey suggests that about 37% of air passengers prefer an aisle seat. n= (Round up to the nearest integer.)
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