A computer analysis of 5 pairs of observations results in the least-squares regression equation y = 2.9091 + 3.0909x, and the standard deviation of the slope is listed as sb1 = 0.886. At α = 0.05, can we conclude that the slope of the regression line, β1, is zero? Use the standard five-step hypothesis testing procedure. Make sure that your last statement is a common sense one. (The final calculated value of t shall be rounded to 4 places to the right of the decimal point and underlined.)
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