THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
For a sample of 20 monthly observations a financial analyst wants to regress the percentage rate of return (y)of the common stock of a corporation on the percentage rate of return (x)of the Standard and Poor's 500 Index.The following summary statistics are available: 
, 
, 
,and 
-Interpret the slope of the sample regression line.
Definitions:
Randomization Techniques
Statistical methods used to ensure each participant in an experiment has an equal chance of being assigned to any group, reducing bias.
Representative Sample
A subset of a population that accurately reflects the members of the entire population, used in statistical analysis or research studies.
Sampling Frame
A list or database from which a sample is drawn for a study, representing the entire population of interest.
Reliability
Reliability is the degree to which a measurement procedure yields consistent results.
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