In 2010, Dr. Bob decided to gather research on the type of disorders that present among...

50.1K

Verified Solution

Question

Basic Math

In 2010, Dr. Bob decided to gather research on the type ofdisorders that present among his patients. His data collectionresulted in the following breakdown of patients by disorder: 54.9%Schizophrenia; 21.1% Major Depression; 7.9% Obsessive-CompulsiveDisorder; 4.5% Anxiety Disorder; 2.9% Personality Disorder; 8.8%Other. Information was collected from a random sample 0f 300patients in 2018 to determine whether or not the data has changedsignificantly. The sample data is given in the table below. At the?=0.05 level of significance, test the claim that the disorderbreakdown of patients at Dr. Bob's hospital has not changedsignificantly since 2010.

Which would be correct hypotheses for this test?

  • H0:The breakdown of patients by disorder has not changedsignificantly since 2010 (i.e. the given distribution stillfits);  H1:The breakdown of patients by disorder haschanged significantly since 2010 (i.e. the given distribution nolonger fits)
  • H0:p1=p2 ; H1:p1?p2
  • H0:The breakdown of patients by disorder has changedsignificantly since 2010 (i.e. the given distribution no longerfits);  H1:The breakdwon of patients by disorder has notchanged significantly since 2010 (i.e. the given distribution stillfits)
  • H0:?1=?2;  H1:?1??2



Type of disorder per patient in sample:

DisorderCount
Schizophrenia145
Major Dispression73
Obsessive-Compulsive Disorder30
Anxiety Disorder12
Personality Disorder14
Other26



Test Statistic:



Give the P-value:



Which is the correct result:

  • Reject the Null Hypothesis
  • Do not Reject the Null Hypothesis



Which would be the appropriate conclusion?

  • There is not enough evidence to suggest that the breakdown ofpatients by disorder has changed significantly since 2010.
  • There is enough evidence to suggest that the breakdown ofpatients by disorder has changed significantly since 2010.

Answer & Explanation Solved by verified expert
3.9 Ratings (380 Votes)
CategoriesObservedExpectedfofe2feCategory 114530005491647145164721647 2356Category 2733000211633736332633 1486Category 3303000079237302372237 1675Category    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students