Examlex
Instruction 8-1
A random sample of 100 stores from a large chain of 1,000 garden supply stores was selected to determine the average number of lawnmowers sold at an end-of-season clearance sale. The sample results indicated an average of 6 and a standard deviation of 2 lawnmowers sold. A 95% confidence interval (5.623 to 6.377) was established based on these results.
-Referring to Instruction 8-1,there are 10 possible samples of 100 stores that can be selected out of the population of 1,000 stores.
Room Color
The influence of paint or decoration hues in a room on mood, behavior, and cognitive performance.
Double-Blind Experiment
A scientific experiment setup where neither the participants nor the experimenters know which participants are receiving the test treatment, to prevent bias.
Independent Variable
The condition or factor that is manipulated by a researcher to determine its effect on a dependent variable in an experiment.
Independent Variable
The experimental element that is manipulated to observe its effects on the dependent variable within a study.
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