A study of the relationship between a student’s test score o…

A study of the relationship between a student’s test score on a Monday is linearly related to the number of hours a student watched television over the previous weekend. A researcher randomly selects 15 students from community colleges in the region and records both variables. She uses the LinReg feature in her calculator to get the following: n = 15,   r = 0.476,  y-hat = -4.067x + 93.97,   y-bar = 73.25 Use the researcher’s result to decide if the variables are linearly related, and then make the best prediction for a student’s test score when the student watched 6 hours  of television over the previous weekend.

A 35-year-old patient presents to your outpatient physical t…

A 35-year-old patient presents to your outpatient physical therapy clinic three weeks after suffering a penetrating wound to the neck in a freak accident with a tranquilizer dart. He reports a lack of sensation on the anterolateral aspect of his distal forearm and over his thumb.  You suspect he has damaged one of the roots of his brachial plexus, and based on his sensory symptoms, you expect that he will have motor weakness with_____________. 

A study of the relationship between a student’s test score o…

A study of the relationship between a student’s test score on a Monday is linearly related to the number of hours a student watched television over the previous weekend. A researcher randomly selects 15 students from community colleges in the region and records both variables. She uses the LinReg feature in her calculator to get the following: n = 15,   r = 0.476,  y-hat = -4.067x + 93.97,   y-bar = 73.25 Use the researcher’s result to decide if the variables are linearly related, and then make the best prediction for a student’s test score when the student watched 6 hours  of television over the previous weekend.

A 35-year-old patient presents to your outpatient physical t…

A 35-year-old patient presents to your outpatient physical therapy clinic three weeks after suffering a penetrating wound to the neck in a freak accident with a tranquilizer dart. He reports a lack of sensation on the anterolateral aspect of his distal forearm and over his thumb.  You suspect he has damaged one of the roots of his brachial plexus, and based on his sensory symptoms, you expect that he will have motor weakness with_____________.