Given the Least Squares Regression Line ,And a Coefficient

question 208

Multiple Choice

Given the least squares regression line ,and a coefficient of determination of 0.81,the coefficient of correlation is:

• A)−0.66
• B)0.81
• C)−0.90
• D)0.90

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Definitions:

Sample Size

The number of observations or data points collected in a sample, which is a subset of the larger population.

Process Mean

The average value of a set of measurements from a process, indicating its central tendency or typical performance.

Average Run Length

In statistical quality control, it is the average number of samples that must be taken before a change in the status of a process is detected.

Type I Error

The improper denial of a genuine null hypothesis, also identified as a "false positive."