Identify the kind of sample that is described. In a large retail company, a list of all current employees is obtained and a random number generator is used to select 50 of them to give their opinions...

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Extracted text: Identify the kind of sample that is described. In a large retail company, a list of all current employees is obtained and a random number generator is used to select 50 of them to give their opinions about employee benefits. The sample is a (Choose one) Systematic voluntary response convenience stratified simple random cluster sample.


Extracted text: Determine whether the data described are nominal or ordinal. In the first round of the spelling bee, I came in second, but I came in first in the last round. Ordinal O Nominal Determine whether the study described is a randomized experiment or an observational study. A medical researcher wants to determine whether exercising can lower blood pressure. She recruits 50 people who exercise regularty and 50 who do not. She measures the blood pressure of each of the 100 individuals both before and after the study. Choose the correct answer. ORandomized experiment Observational study