identify the sampling method used in each of the following scenarios and write a short explanation of the benefit of using this method of sampling:

Third Grade Children: A researcher has a population of 100 third grade children from a local school district from which a sample of 25 children is to be selected. Each child's name is put on a list, and each child is assigned a number from 1 to 100. Then the numbers 1 to 100 are written on separate pieces of paper and shuffled. Finally, the researcher picks 25 slips of paper and the numbers on the paper determine the 25 participants

Maximum-Security Inmates: A researcher is interested in maximum-security inmates. She groups inmates by the type of crime committed, determines the percentage of the total in each crime category, and uses that percentage to determine the number of inmates randomly selected from each

Stranded Travelers: A television reporter interviewed travelers stranded at an airport during a snowstorm about the efficiency of air travel.

Sleeping Habits: A professor is studying the sleeping habits of the 1600 students at the university. The professor assigns each student a number from 1 to 1600. She selects the sample by randomly choosing one of the first 40 numbers and every 40th number thereafter.

Hypothesis Testing and Inferential Statistics: you will utilize the scientific method for testing research questions and hypotheses using statistical analysis. You will be presented with specific scenarios for you to develop appropriate hypotheses. Given the following situations, state the appropriate hypotheses, the null hypothesis, and the alternate. Use the appropriate notation for both the null and alternate hypothesis. Situation 1: What happens when a store uses visual merchandising? Situation 2: Does political content on social media impact company sales? Situation 3: What will happen if salt is added to ice? Situation 4: What conditions affect the growth of seeds?