Exam (elaborations)
ACTIVITY 4-3 QUESTIONS AND ANSWERS 2024 WITH COMPLETE ANSWERS
- Course
- Institution
ACTIVITY 4-3 QUESTIONS AND ANSWERS 2024 WITH COMPLETE ANSWERS
[Show more]
Content preview
ACTIVITY 4-3 QUESTIONS ANDANSWERS 2024 WITH COMPLETE
ANSWERS
For sseach ssof ssthe ssfollowing ssproblems, sschoose ssif ssa ssresearcher ssshould ssuse ssa
ssz ssfor ssan ssindividual ssscore, ssz ssfor ssa sssample ssmean, ssor sssingle sssample sst.
ssJust sschoose sswhich ssstatistic ssis ssappropriate. ssDo ssnot sscompute ssthe ssstatistic
ssyet. ssYou sswill ssdo ssthat ssat ssthe ssend ssof ssthe ssactivity.
A ssschool sspsychologist sswants ssto ssidentify ssstudents sswho ssmay ssneed ssextra sshelp
ssin sstheir ssmath sscourse ssand ssso ssgives ssthe ssstudents ssa ssstandardized ssmath
sstest. ssThe ssscores ssare ssnormally ssdistributed ssand sshave ssa ssmean ssof ss500 ssand
ssa ssstandard ssdeviation ssof ss100. ssStudents sswho ssscore ssbelow ss400 ssare ssgiven
ssadditional sstutoring. ssWhat sspercentage ssof ssstudents sswould ssyou ssexpect ssto
ssreceive ssscores ssat ssor ssbelow ss400? ssChoose ssthe sscorrect ssstatistic. ss- ssAnswer
ssz ssfor ssan ssindividual ssscore
15.87%
A ssresearcher ssknows ssthat sspoverty ssis ssoften ssassociated sswith sspoor ssnutrition.
ssThe ssresearcher sswants ssto ssdetermine ssif sspoverty ssis ssalso ssrelated ssto ssheight.
ssTo sstest ssthis ssassociation, sshe ssobtains ssa sssample ssof ss25 sswomen sswho sshave
ssincomes ssbelow ssthe sspoverty ssline. ssAssuming ssthat ssthe ssaverage ssheight ssof
sswomen ssin ssthe sspopulation ssis ss64.5 ssinches sswith ssa ssstandard ssdeviation ssof ss2
ssinches, sswhat ssis ssthe ssprobability ssthat sssampling sserror sswould ssresult ssin
ssobtaining ssa sssample ssmean ssthat ssis ssbelow ss63 ssinches ssfor ssa sssample ssof ss25
sswomen? ssChoose ssthe sscorrect ssstatistic. ss- ssAnswer ssz ssfor ssa sssample ssmean
.0001
A sscar ssseat ssmanufacturer ssdevelops ssa ssseat ssthat ssis sssafest ssfor sspeople sswho
ssare ssbetween ss62 ssinches ssand ss68.5 ssinches. ssIf ssthe ssaverage ssheight ssof
sswomen ssin ssthe ssUnited ssStates ssis ss64 ssinches sswith ssa ssstandard ssdeviation ssof
ss2 ssinches, sswhat sspercentage ssof sswomen ssfall ssoutside ssof ssthe sssafest ssrange?
ssChoose ssthe sscorrect ssstatistic. ss- ssAnswer ssz ssfor ssan ssindividual ssscore
17.09%
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller LucieLucky. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75323 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now