Question

8-9

BT IL short answer and computation problems, each problem's point value is indicated before the problema 8) (3) For the following four correlations, rank them in order from the strongest to the weakest relationship. a. -0.25 b. 0.75 Strongest 2nd strongest 3rd strongest Weakest c.0.50 d. +0.10 9) (5) Using a 10-point scale, two managers independently rate the performance of the same five salespeople. The ratings appear below. Higher scores indicate better performance 101 9 B 7 6 5 4 3 21 1 4 5 6 7 8 9 10 Salesperson к L M N Manager 11%Manager 21 9 4 4 8 5 3 8 4 6 a. (2) Using the graph at right, draw a scatterplot of these data. (Or draw one using software or freehand; your choice.) b. (1) State what the direction of the relationship between the two managers' ratings appears to be. C. (2) Assuming both managers are supposed to use the same objective criteria (like sales, absences, etc.) to rate the salespeople, state whether you find the direction of the relationship sensible or not, and (briefly) explain your answer.

Answer 1

Korrelation coefficient range - Ise 1 е тъ -1 seco => negative corrin betn variable If r=0 = No correlation betn voriable It osas1 => positive corelo beto variable. As corel close to +1 & -1 the correlation get's stronger. given Rank. a q = -0.25 strongest b =) a = -0.75 strongest every close to -1) € = = +0.50 strongest a z = to.ro weakest 3rd 27d b and strongest strongest ged strongest weakest - d