What is the slope of the least-squares best-fit line


Using "size" as the independent variable and "cost" as the dependent variable, draw a scatter plot. b. Does it appear from inspection that there is a relationship between the variables? Why or why not? c. Calculate the least-squares line. Put the equation in the form of: y=a+bx d. Find the correlation coefficient. Is it significant? e. If the laundry detergent were sold in a 40-ounce size, find the estimated cost. f. If the laundry detergent were sold in a 90-ounce size, find the estimated cost. g. Does it appear that a line is the best way to fit the data? Why or why not? h. Are there any outliers in the given data? i. Istheleast-squareslinevalidforpredictingwhata300-ounce size of the laundry detergent would you cost? Why or why not? j. What is the slope of the least-squares (best-fit) line? Interpret the slope

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Basic Statistics: What is the slope of the least-squares best-fit line
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