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Hinton Motors is testing an experimental battery-powered engine for its passenger cars.Hinton has tested the range of the engine in five different trials, recording the distance traveled in each trial before the battery needed recharging.Trial results are given in the table: Produce the 90% confidence interval of the average distance for the population represented here.Assume that the population distribution is approximately normal.Report the upper bound for your interval.
Experimental Method
A scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.
Independent Variable
The variable in an experiment that is manipulated to observe its effect on a dependent variable.
Positive Correlation Coefficient
A statistical measure indicating that as one variable increases, the other variable tends to increase as well.
Covary
Refers to the phenomenon where two variables change in relation to each other, often used in statistical analysis to understand correlations.
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