Suppose the expected cost of a production run is related tothe size of the run by the equation y 5 4000 1 10x. Let Ydenote an observation on the cost of a run. If the variablessize and cost are related according to the simple linearregression model, could it be the case that PsY . 5500when x 5 100d 5 .05 and P(Y . 6500 when x 5 200) 5.10? Explain

Where Do Data Come From The field of statistics is applicable in every discipline. To give an idea of how widespread its use is, consider the following examples illustrating the scope of applications: From ratemyprofessors.com, STAT 110 instructors often get comments about the practice test looking like the real exam…..should you believe this claim Here are some interesting stats from Exam 2 last semester Summary statistics: Column n Mean Variance Std. Dev. Std. Err. Median Range Min Max Q1 Q3 • • Exam 2 379 78.51715 318.37735 17.843132 0.9165401 82 102 0 102 70 90 A claim found on MedPageToday http://www.medpagetoday.com/Pediatrics/Gen