STA 205 Lecture 4: Homework4

21 views6 pages
19 Dec 2018
School
Department
Course
12/17/2018 NKU Imath Assessment
https://imath.nku.edu/course/gb-viewasid.php?stu=11461&cid=335&asid=148804&uid=11461 1/6
Grade Book Detail
Damico , Emily
Topic 4: Hypothesis Test for the Proportion
Started: September 20, 2018, 3:21 pm
Last change: September 24, 2018, 4:51 pm
Total time questions were on‑screen: 115 minutes.
Showing Scored Attempts | Show Last Attempts | Show Review Attempts
Hide Correct Questions Hide Perfect Questions Hide Unanswered Questions Show All Answers
Preview All
Throwbackquestion:Inpharmacologicresearchavarietyofclinicalchemistrymeasurementsareroutinely
monitoredcloselyforevidenceofsideeffectsofthemedicationunderstudy.Supposetypicalbloodglucose
levelsarenormallydistributedwithmean99.06mg/dlandstandarddeviation23.42mg/dl.(Note:Roundall
ofyouranswerstofourdecimalplaceswhereappropriate.)
a.Wewouldexpectthebloodglucoselevelstofallbetween and in68%ofpatients.
b.Anormalglucoserangeis65120mg/dl.Whatistheprobabilityapatient'sbloodglucoselevelfalls
betweenthesetwovalues?
z1=
z2=
probability=
c.Whatistheprobabilitythatapatient'sbloodglucoselevelisgreaterthan166mg/dl?
z=
probability=
d.Ifabloodglucoselevelisinthetop1%,thenthepatientisclassifiedasabnormal.Whatbloodglucose
levelcorrespondstothiscutoff?
z=
glucose= mg/dl
Answer:75.64
Answer:122.48
Answer:1.45or0.89
Answer:0.89or1.45
Answer:0.7398
Answer:2.86
Answer:0.0021
Answer:2.33
Answer:153.6286
Question 1: 6.2 (parts: 0, 0.78, 0.78, 0.78, 0.78, 0.78, 0.78, 0.78, 0.76) out of 7 (parts: 0.78, 0.78, 0.78,
0.78, 0.78, 0.78, 0.78, 0.78, 0.76)in 1 attempt(s)
Unlock document

This preview shows pages 1-2 of the document.
Unlock all 6 pages and 3 million more documents.

Already have an account? Log in
12/17/2018 NKU Imath Assessment
https://imath.nku.edu/course/gb-viewasid.php?stu=11461&cid=335&asid=148804&uid=11461 2/6
Iftheprobability(pvalue)islessthanthelevelofsignificance,whatdecisionismadeinthehypothesistest?
Failtorejectthenullhypothesis
Rejectthenullhypothesis
Acceptthenullhypothesisastrue
Answer:Rejectthenullhypothesis
Question 2: 1 out of 1 in 1 attempt(s)
Thefollowinghypothesesaretested: versus
Theteststatisticwasfoundtobez=2.19.Whatistheprobabilityforthishypothesistest?
probability=
Answer:0.0143
Question 3: 2 out of 2 in 1 attempt(s)
Thefollowinghypothesesaretested: versus
Theteststatisticwasfoundtobez=1.87.Whatisthepvalue(probability)forthishypothesistest?
probability=
Answer:0.0307
Question 4: 2 out of 2 in 1 attempt(s)
Unlock document

This preview shows pages 1-2 of the document.
Unlock all 6 pages and 3 million more documents.

Already have an account? Log in

Get OneClass Notes+

Unlimited access to class notes and textbook notes.

YearlyBest Value
75% OFF
$8 USD/m
Monthly
$30 USD/m
You will be charged $96 USD upfront and auto renewed at the end of each cycle. You may cancel anytime under Payment Settings. For more information, see our Terms and Privacy.
Payments are encrypted using 256-bit SSL. Powered by Stripe.