1. Identify the different sampling techniques (Convenience, Simple random, systematic, stratified, census, cluster, voluntary response )for each problem below: a. A soap company distributed free samples of a new laundry detergent to all households in several randomly selected neighborhoods. The company requested the recipients to return a postage-paid card indicating whether they thought the sample was better than their usual detergent. What sampling techniques was the company using? b. A psychologist is studying the sleep patterns of the students at her university. She decides to start by asking a random sample of 30 students how many hours of sleep they get weekday nights. Identify the type of sample She selects the sample by randomly choosing one of the first 132 numbers and every 132nd number thereafter. c. Take a random sample of five zip codes from the Chicago metropolitan region and count the number of students enrolled in the first grade for every elementary school in each of the zip code areas.

1. Identify the different sampling techniques (Convenience, Simple random, systematic, stratified, census, cluster, voluntary response )for each problem below: a. A soap company distributed free samples of a new laundry detergent to all households in several randomly selected neighborhoods. The company requested the recipients to return a postage-paid card indicating whether they thought the sample was better than their usual detergent. What sampling techniques was the company using? b. A psychologist is studying the sleep patterns of the students at her university. She decides to start by asking a random sample of 30 students how many hours of sleep they get weekday nights. Identify the type of sample She selects the sample by randomly choosing one of the first 132 numbers and every 132nd number thereafter. c. Take a random sample of five zip codes from the Chicago metropolitan region and count the number of students enrolled in the first grade for every elementary school in each of the zip code areas.

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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