1. A sample of 2,000 was sought to estimate the average achievement in science of fifth graders in a city's public schools. The average fifth grade enrollment in the city's elementary schools is 100 students. Thus, 20 schools were randomly selected and within each of those schools all fifth graders were tested. (CLUSTER, SNOWBALL, QUOTA) *

1. A sample of 2,000 was sought to estimate the average achievement in science of fifth graders in a city's public schools. The average fifth grade enrollment in the city's elementary schools is 100 students. Thus, 20 schools were randomly selected and within each of those schools all fifth graders were tested. (CLUSTER, SNOWBALL, QUOTA) *

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

A principal wants to learn how students studied for the EOCs. Explain how the principal could poll the participants if she wanted to use a cluster sample.
A professor wanted to study the number of hours statistics students spend studyingstatistics each week. Out of 19 statistics sections at Santa Ana College, the professorsurveyed each student from 3 randomly selected sections. What is the largest group ofstudents the results of this study can represent?a. All Santa Ana College studentsb. All Santa Ana College students taking a math classc. All Santa Ana College students taking a statistics classd. Students in the three sections the professor surveyed
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?
The executives of an accounting firm plan to survey a random sample of clients to determine how satisfied they are with the service they have received. Of the firm's 5412 regular clients, 500 are surveyed and 435 claim to be very satisfied with the service they have received. The sample is the: 5412 regular clients. 500 clients surveyed. 65 clients that were not satisfied. 435 satisfied clients.
Catherine Chao, Director of Marketing Research, needs a sample of households to participate in the testing of a new toothpaste package. She directs the seven members of her staff to find five households each. Catherine's sample is a cluster sample proportionate stratified sample quota sample disproportionate stratified sample simple random sample O O O
UTAS, Nizwa has received 400 Red Markers, 600 Black Markers and 1000 Blue Markers. The college store keeper wants to check 50 samples using stratified sampling. Which of the following are the correct samples? a. 25 Red Markers, 15 Black Markers, 10 Blue Markers b. 10 Red Markers, 15 Black Markers, 25 Blue Markers c. 15 Red Markers, 15 Black Markers, 20 Blue Markers d. 10 Red Markers, 25 Black Markers, 15 Blue Markers
please answer all parts
In a college there are 2000 students, we draw a simple random sample without replacement of 500 students from the 2000 students. We ask each student in the sample "Do you use laptop? Yes or No", 230 students answer Yes and 270 students answer No. Estimate the number of student in the college who use laptops.
The city of Raleigh has 10500 registered voters. There are two candidates for city council in an upcoming election: Brown and Feliz. The day before the election, a telephone poll of 500 randomly selected registered voters was conducted. 158 said they'd vote for Brown, 293 said they'd vote for Feliz, and 49 were undecided.Give the sample statistic for the proportion of voters surveyed who said they'd vote for Brown. Note: The proportion should be a fraction or decimal, not a percent.
A farmer is researching the effectiveness of a pest control spray. He divides his orchard into 5 sections. He then inspects all the trees within 2 of those sections. What type of sampling method is he using?