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The amount of material used in making a custom sail for a sailboat is normally distributed.For a random sample of 15 sails,you find that the mean amount of material is 912 square feet,with a standard deviation of 64 square feet.Develop a 99% confidence interval for the population mean amount of material used in a custom sail.
Status Variables
Variables that describe or categorize individuals based on their social or professional position.
Independent Variable
The variable in an experiment that is manipulated or changed by the researcher to observe its effects on the dependent variable.
Independent Variable
The experimental factor that is manipulated to test its effects on the dependent variable, serving as the cause in a cause-and-effect relationship.
Dependent Variable
The variable in an experiment that is expected to change in response to manipulations of the independent variable.
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