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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
Grade Book Detail
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.
Apositivedifferencemeansthe cholesterolreadingwasgreaterthanthe
reading,implyingcholesterolscores  overthe6weekstudy.A
negativedifferencemeansthe cholesterolreadingwasgreaterthanthe
reading,implyingcholesterolscores  overthe6weekstudy.
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.
Selecttheappropriatehypothesestotesttheclaimmade.
= 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.
Answer:cholesterol
Answer:Quantitative
Answer:poststudy
Answer:prestudy
Answer:increased
Answer:prestudy
Answer:poststudy
Answer:decreased
Answer:Output2
Answer:Thesamplesaredependentthesamesampleofsubjectshadtheircholesterolmeasuredtwice.
Answer: 
Answer:0.05
Answer:<
Answer:3.502
Answer:0.0003
Answer:RejectH
Answer:is

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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
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