number 5 please 0 HW9 STAT201 : Correlati x/ vA HW9 STAT201: Correlati x e Stati
ID: 3316330 • Letter: N
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number 5 please
0 HW9 STAT201 : Correlati x/ vA HW9 STAT201: Correlati x e Statistics and Probability × C www.webassign.net/web/Student/Assignment Responses last?dep-17562372?course-443014635852&target-web;/Student/Assignment Responses/last?dep#175623728. a Graph 1 Sc Graph 2L et… | Graph 3-Select | Graph 41-..Select | 5 -3 points My N Imagine a regression line that relates average systolic blood pressure to a persons age. For this setting let the average systolic blood pressure play the role of response variable. The average blood pressure for people 24 years old is 98, while for those 34 years old the average is 142. Recall from high school that the slope is "rise" over "run. Since this is a two point line your model will fit perfectly1). (a) What is the slope of the regression line? Round the answer to two decimal places.) (b) What is the intercept of the regression line? Round the answer to twro decimal places (c) What is the estimated average systolic blood pressure for people who are 29 years old? Round the answer to one decimal place.) Submit Assignment Save Assignment Progress Home My Assignments Extension Request Nebsgn8 4.01997 2017 Advaneed Insructional Systoms, Inc All righte rocerved 11:19 AM Type here to search 12/5/2017Explanation / Answer
the equation is given as y=ax+b
in first case x=24 and y is 98 thus 98=24a+b
in second case x=34 and y is 142 thus 142=34a+b
subtracting the two equations we get 10a=44
thus a is 4.4 and putting this in equation 1 we get b=98-24*4.4=-7.6
thus equation is y=4.4x-7.6
thus a) slope is 4.4
b) intercept is -7.6
c) for x=29, the y is y=4.4*29-7.6=120
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