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Final

# STA 205 Study Guide - Final Guide: Rosuvastatin, AtorvastatinExam

Department
Statistics
Course Code
STA 205
Professor
Brooke Buckley
Study Guide
Final

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12/17/2018 NKU Imath Assessment
https://imath.nku.edu/course/gb-viewasid.php?stu=11461&cid=335&asid=155445&uid=11461 1/15
Damico , Emily
Final Exam Review
Started: December 6, 2018, 1:40 pm
Last change: December 9, 2018, 10:56 pm
Total time questions were on‑screen: 75.8 minutes.
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12/17/2018 NKU Imath Assessment
https://imath.nku.edu/course/gb-viewasid.php?stu=11461&cid=335&asid=155445&uid=11461 2/15
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Anewdrughasbeendevelopedtotreathighcholesterol.Onehundredsevenindividualswithhighcholesterolwere
recruitedtoparticipateinthestudy.Cholesterolwasmeasuredatthebeginningofthestudyandthesubjectswere
placedontheexperimentaldrugfor6weeks.Attheendofthestudycholesterollevelsweremeasuredagain.The
StatCrunchoutputbelowwasobtained:
a.Whatvariablewasrecordedinthedatacollected?Classifythevariableascategoricalorquantitative.
Variable: 
Type:
b.Explainwhatapositiveandnegativevalueincholesterolchange(post–pre)means.
c.Determinewhichoftheoutputsaboveisappropriateforanalyzingthedatacollected.
Explanation: 
d.Usingtheoutputselectedinpartc,determineifthedatacollectedprovidesevidencethemeancholesterollevel
decreaseswiththeuseoftheexperimentaldrug.Useasignificancelevelof0.05.
= reject ifprobability   
TS:t=
probability=
decision: 
Atthe0.01level,there  significantevidencetoconcludemeancholesterollevel
decreaseswiththeuseoftheexperimentaldrug.

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12/17/2018 NKU Imath Assessment
https://imath.nku.edu/course/gb-viewasid.php?stu=11461&cid=335&asid=155445&uid=11461 3/15
Question 1: 23.5 (parts: 1.47, 1.47, 1.47, 1.47, 1.47, 1.47, 1.47, 1.47, 1.47, 1.47, 0, 1.47, 1.47, 1.47, 1.47, 1.47, 1.48)
out of 25 (parts: 1.48, 1.48, 1.48, 1.48, 1.48, 1.48, 1.48, 1.48, 1.48, 1.48, 1.48, 1.48, 1.48, 1.48, 1.48, 1.48, 1.32)in 2
attempt(s)