HLTB21H3 Lecture Notes - Lecture 7: Simple Linear Regression, Confidence Interval, Null Hypothesis

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23 Jul 2017
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A study by triller et al. (a-14) examined the length of time required for home health-care nurses to repackage a patient"s medications into various medication organizers (i. e. , pill boxes). For the 19 patients in the study, researchers recorded the time required for repackaging of medications. They also recorded the number of problems encountered in the repackaging sessions. Independent variable: number of problems: scatter diagram. 1: assuming a linear relationship, find the simple linear regression equation. (excel summary output of the regression analysis) Syx= 7. 081 is the standard deviation of the observed repackaging times spent (by nurses) around the line of regression. Perform the t test for the significance of slope between number of problems encountered and time spent by nurses repackaging. (2 tail. test) H1: (cid:2236) 0 there is a linear relationship between repackaging time and number of problems (cid:2202)(cid:2196) (cid:2779)= (cid:2184)(cid:2778) (cid:2236)(cid:2778) (cid:2175)(cid:2184)(cid:2778) = (cid:2778). (cid:2785) (cid:2777) (cid:3116). 5585 =(cid:2780). (cid:2779)(cid:2780) (cid:1872)(cid:2869)(cid:2877) (cid:2870), (cid:2868). (cid:2868)(cid:2868)(cid:2873)=(cid:2870). (cid:2876)(cid:2877)(cid:2876)

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