Bardi Trucking Co., located in Cleveland, Ohio, makes deliveries in the Great Lakes region, the Southeast,...

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Bardi Trucking Co., located in Cleveland, Ohio, makes deliveriesin the Great Lakes region, the Southeast, and the Northeast. JimBardi, the president, is studying the relationship between thedistance a shipment must travel and the length of time, in days, ittakes the shipment to arrive at its destination. To investigate,Mr. Bardi selected a random sample of 20 shipments made last month.Shipping distance is the independent variable and shipping time isthe dependent variable. The results are as follows:

ShipmentDistance (miles)Shipping Time (days)ShipmentDistance (miles)Shipping Time (days)
1782141160910
2724151285510
361615136879
4751111466312
57135156879
680031684512
772691761510
883114187897
96496197445
108246207065

Draw a scatter diagram. Based on these data,does it appear that there is a relationship between how many milesa shipment has to go and the time it takes to arrive at itsdestination?

Fill in the blanks. (Round your answersto 3 decimal places. Negative values should be indicated by minussign.)

x??x¯
y??y¯
Sx
Sy
r

State the decision rule for 0.10 significance level:H0: ? ? 0; H1:? > 0.

Compute the value of the test statistic.

Determine the coefficient of determination.

Fill in the blank below. (Round your answer to 1 decimalplaces.)

___% of the variation in shipping time is explained in byshipping distance

Determine the standard error of estimate.

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