For their class project, a group of Business students decide to survey the stude

Question

For their class project, a group of Business students decide to survey the student body to assess opinions about a proposed new student coffee shop to judge how successful it might be. The sample of 80 contained 20 final-year students. 10 sophomores, 20 juniors, and 20 seniors. Complete parts (a) and (b) below. Do you think the group was using an SRS? Why? Choose the correct answer below. yes; it would be nearly impossible to get exactly 20 from each class by random chance. No; it is highly likely that exactly 20 from each class will be surveyed by random chance. Yes; it is highly that exactly 20 from each class will be surveyed by random chance. No; it would be nearly impossible to get exactly 20 from each class by random chance. What kind of sampling design do you think they used? Choose the correct answer below. A sample random sample A cluster sample A multistage sample A satisfied sample

Explanation / Answer

SRS : Stratified random sampling

Stratified random sampling is a method of sampling that involves the division of a population into smaller groups known as strata. In stratified random sampling, the strata are formed based on members' shared attributes or characteristics.

Here in our case, the group of businees were divided into 3 smaller groups or 3 strata . The groups are : sophomore juniors and seniors

(a)Do you think the group was using SRS? why

C . Yes, it's higly likely that exactly 20 from each class is surveyed by random chance

(b) What kind of sampling design you think they used?

A stratified sample

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