Let x be the average number of employees in a group health insurance plan, and let y be the average administrative cost as a percentage of claims. x 3 7 15 36 71 y 40 35 30 26 20 (a) Make a scatter...


Letx be the average number of employees in a group health insurance plan, and lety be the average administrative cost as a percentage of claims.
























x

37153671


y

4035302620


(a) Make a scatter diagram of the data and visualize the line you think best fits the data.




(b)


Would you say the correlation is low, moderate, or strong? positive or negative?


moderate and positive

low and positive

strong and negative

low and negative

moderate and negative

strong and positive



(c) Use a calculator to verify that Σx = 132, Σx
2 = 6620, Σy = 151, Σy
2 = 4801, and Σxy = 3171. Computer. (Round your answer to four decimal places.)


r =



Asx increases, does the value ofr imply thaty should tend to increase or decrease? Explain.



Given our value ofr, we cannot draw any conclusions for the behavior ofy asx increases.


Given our value ofr,y should tend to decrease asx increases.


Given our value ofr,y should tend to remain constant asx increases.


Given our value ofr,y should tend to increase asx increases.










Jun 09, 2022
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