Juliana works for a company that manufactures microchips in Arizona. Sh: wants to compare the productivity of the new vs older layout for the fabricatiou facility. In recruiting her sample, she casually walked over to each departmen and chose workers from that department. That way she was able to try t: approximate that the sample included workers from each of the fou departments. What type of sampling technique did she use? 0 Simple random sample 0 Systematic sample 0 Stratied sample 0 Cluster sample 0 Convenience sample 0 Snowball sample 0 judgment sample 0 No sample was used this was an example of a census Esther created a workshop designed to maximize starting salary of MBA students. She would like to test the efcacy of the one-day workshop so she asked for volunteers from the MBA program and then randomly assigned half to participate in her workshop and the other half to participate in a peer-run support group and then compared the starting salary level received by each student What type of sampling technique did she use? 0 Simple random sample 0 Systematic sample 0 Stratied sample 0 Cluster sample Convenience sample O Snowball sample 0 judgment sample 0 No sample was used this was an example of a census Ky is a visual artist who also runs artist cooperatives across the northeast. He is interested in whether implementing a self-service checkout kiosk would affect the sales of art supplies. In half of the locations, he replaced the traditional checkout counters with self-service kiosks and measured the number of sales. He measured sales from all of the stores. What type of sampling technique did he use? 0 Simple random sample 0 Systematic sample 0 Stratied sample 0 Cluster sample 0 Convenience sample 0 Snowball sample 0 judgment sample 0 No sample was used this was an example of a census Mariska owns a cattle ranch and wants the cattle to gain weight while still staying healthy. She feeds the new organic feed to half of her sample, and she feeds the traditional feed to the other half and then weighs them after 6 months. To ensure that her sample is representative of the whole herd, she carefully selects 1/3 of her sample from the Hereford group, 1/3 from the Holstein group and 1/3 from the Angus group. What type of sampling technique did she use? 0 Simple random sample 0 Systematic sample 0 Stratied sample 0 Cluster sample 0 Convenience sample 0 Snowball sample 0 judgment sample 0 No sample was used this was an example of a census