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Preet Chahal
Answers (5)
PC
Answered
Edison Automotive Machining Company needs to borrow money to repair a broken milling machine. The company can borrow $80,000 for 300 days at 7% exact simple interest. Compute the total amount that Edison will need to repay. (Use a 365-day year.)
On Jun 29, 2024
$80,000 × 0.07 × 300/365 = $4,602.74; $80,000 + $4,602.74 = $84,602.74
PC
Answered
Here is the scatterplot of externally Studentized residuals against predicted values: 
Comment on what this diagnostic display indicates.
Comment on what this diagnostic display indicates.On Jun 27, 2024
The scatterplot of the residuals against the predicted values show many groups of spread out values with at least two outliers.It is likely that both outlying points are influential and removing them would change the regression model significantly.
PC
Answered
{30 Samples Production Narrative} Looking at the 
chart developed in a previous question,you see indications of a possible level shift as well as cyclic variation.Explain how the chart shows this,and give a possible explanation.
chart developed in a previous question,you see indications of a possible level shift as well as cyclic variation.Explain how the chart shows this,and give a possible explanation.On May 29, 2024
Most of the points lie above the centerline and in fact tend to hover around one standard error above the centerline.You can also see a pattern of several points above this line followed by several points below this line.The level shift might be caused by a new machine or operator,and the cyclic variation might be caused by operator fatigue.
PC
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What name do we give to a descriptive measure of a sample?
On May 27, 2024
A statistic.
PC
Answered
If the value of the Durbin-Watson statistic,d,satisfies the inequality dL≤d≤dU,where dL and dU are the critical values for d,then the test for positive first-order autocorrelation is inconclusive.
On May 26, 2024
True