Topic 2 DQ 2 Simple Random

Topic 2 DQ 2 Simple Random

Simple Random is when everyone in the population has a chance to be picked. An example would be for instance the gifts that are given away at baby showers. Every attendee at the baby shower puts their name into a bowl, there is to be 6 winners total. One name is drawn from the bowl at a time, and then the same name is placed back into the bowel for the next draw. They continue to pick names until 6 winners are drawn. Cluster sampling is used when studying a certain population. For example studying homeless people across the country rather than studying a few homeless in every town. A number of towns are selected and a significant number of homeless people are interviewed in each one. Stratified sampling would be when a researcher selects a population and then separates the population into subgroups. From each subgroup final subjects are chosen. An example would be University studies that are organized by a college class and then divided into freshmen, sophomores, juniors, and seniors. Next a certain amount of students are selected from each subgroup for the final sample. A Random Sample would be when a population is selected and the subjects from that population are randomly chosen. Everyone in that population has an equal chance to be chosen. Such as if a student has 3 separate boxes of red, green, and blue marbles. He mixes the contents of all 3 boxes together and selects 16 marbles without looking to get a random sample. A Systematic sample happens when there is system to the way a sample is chosen. An example is a supermarket wants to study purchase habits of consumers. They choose every 12th customer that enters to conduct the study. Finally a Convenience sample is a sample that is taken from a group that is easily accessed. For instance passing out a survey to coworkers in your department because they can be easily accessed and this usually produces a higher response rate. This sample is convenient.

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You must proofread your paper. But do not strictly rely on your computer’s spell-checker and grammar-checker; failure to do so indicates a lack of effort on your part and you can expect your grade to suffer accordingly. Papers with numerous misspelled words and grammatical mistakes will be penalized. Read over your paper – in silence and then aloud – before handing it in and make corrections as necessary. Often it is advantageous to have a friend proofread your paper for obvious errors. Handwritten corrections are preferable to uncorrected mistakes.

Use a standard 10 to 12 point (10 to 12 characters per inch) typeface. Smaller or compressed type and papers with small margins or single-spacing are hard to read. It is better to let your essay run over the recommended number of pages than to try to compress it into fewer pages.

Likewise, large type, large margins, large indentations, triple-spacing, increased leading (space between lines), increased kerning (space between letters), and any other such attempts at “padding” to increase the length of a paper are unacceptable, wasteful of trees, and will not fool your professor.

The paper must be neatly formatted, double-spaced with a one-inch margin on the top, bottom, and sides of each page. When submitting hard copy, be sure to use white paper and print out using dark ink. If it is hard to read your essay, it will also be hard to follow your argument.