Give the appropriate type of random sampling for each item. Justify your answers. The teacher randomly selected 6 students in their class to determine if the students still remember their past lessons. The speaker on a seminar chooses every 15th student who will answer a survey about anxiety. A baker did free tasting in a mall near to him and ask those who ate how well is the bread he made.

MATLAB: An Introduction with Applications
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Give the appropriate type of random sampling for each item. Justify your answers.

  1. The teacher randomly selected 6 students in their class to determine if the students still remember their past lessons.
  2. The speaker on a seminar chooses every 15th student who will answer a survey about anxiety.
  3. A baker did free tasting in a mall near to him and ask those who ate how well is the bread he made.
  4. A researcher from SWS survey picked the cities of Las Piñas, Pateros, Pasig, and San Juan, out of 17 cities of NCR, to be the part of a nationwide survey. The whole populace of the said cities will be interviewed to determine the government response satisfaction rate for COVID-19 crisis.
  5. A survey is being conducted to determine if the students are satisfied to the foods that are being served in their school canteen. School administrators picked 20% of the respondents from Grade 7, 30% from Grade 8, 35% from Grade 9, and 15% from Grade 10.
  6. A researcher chose the subjects of their study by selecting every 11th member of the population.
  7. A researcher interviewed randomly selected people from each town in Davao de Oro for their research on population.
  8. A researcher randomly chooses all the people in 6 out of 13 towns of a certain province to be a part of their sample.
  9. A Statistics student did a research on the time spent by Grade 11 students in playing video games. They randomly selected his subjects by using the Table of Random Numbers.

 

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