Quiz week 4

.docx

School

Old Dominion University *

*We aren’t endorsed by this school

Course

6033

Subject

Statistics

Date

Jan 9, 2024

Type

docx

Pages

8

Uploaded by SargentStrawMule22 on coursehero.com

n which of the following scenarios does the central limit theorem most likely hold true? a. Researchers are interested in approximating the national average BMI (kg/m2) by surveying 158 participants and requiring that they weigh in and have height measurements taken. b. Researchers are interested in approximating the national average BMI (kg/m2) by surveying 24 participants and requiring that they weigh in and have height measurements taken. c. Researchers are interested in approximating the national average BMI (kg/m2) by surveying 37 participants and requiring that they weigh in and have height measurements taken. d. Researchers are interested in approximating the national average BMI (kg/m2) by surveying 19 participants and requiring that they weigh in and have height measurements taken. Question 2 0.67 / 0.67 pts Researchers are interested in conducted an analysis about the effectiveness of a new investigational drug aimed at increasing overall survival among HIV positive patients co-infected with Hepatitis C. Current national data claims that 5 year survival for patients with HIV and Hepatitis C is 32%. This study contains a _____? a. parameter b. estimator c. forecast
d. interpolation Question 3 0.67 / 0.67 pts After treatment analysis, the research team estimates that 5 year survival among those treated with the new medication is 37%. This study reports a _______? a. parameter b. estimator c. forecast d. interpolation Question 4 0.67 / 0.67 pts What happens to the standard error of an estimate when the sample size in a SRS decreases? a. The standard error gets smaller b. The precision of the estimate increases c. The standard error stays roughly the same
d. The precision of the estimate decreases Question 5 0.67 / 0.67 pts Which of the following requisites for a Z test are unnecessary in formal testing of significance? a. A SRS or reasonable approximation thereof b. A population large enough to approximate normality via the Central Limit Theorem c. A known σ prior to initiation of testing d. A set level for power of a test Question 6 0.67 / 0.67 pts Which of the following statistics is not necessary to know prior to performing a power calculation for a one-sample z test? a. The detectable difference worth measuring b. The false positive rate of the test c. The population standard deviation
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
  • Access to all documents
  • Unlimited textbook solutions
  • 24/7 expert homework help
Recommended textbooks for you
Text book image
Mathematics For Machine Technology
Advanced Math
ISBN:9781337798310
Author:Peterson, John.
Publisher:Cengage Learning,
Text book image
Big Ideas Math A Bridge To Success Algebra 1: Stu...
Algebra
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:Houghton Mifflin Harcourt
Text book image
College Algebra (MindTap Course List)
Algebra
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:Cengage Learning
Text book image
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:9781133382119
Author:Swokowski
Publisher:Cengage
Text book image
Glencoe Algebra 1, Student Edition, 9780079039897...
Algebra
ISBN:9780079039897
Author:Carter
Publisher:McGraw Hill
SEE MORE TEXTBOOKS
Recommended textbooks for you
Text book image
Mathematics For Machine Technology
Advanced Math
ISBN:9781337798310
Author:Peterson, John.
Publisher:Cengage Learning,
Text book image
Big Ideas Math A Bridge To Success Algebra 1: Stu...
Algebra
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:Houghton Mifflin Harcourt
Text book image
College Algebra (MindTap Course List)
Algebra
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:Cengage Learning
Text book image
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:9781133382119
Author:Swokowski
Publisher:Cengage
Text book image
Glencoe Algebra 1, Student Edition, 9780079039897...
Algebra
ISBN:9780079039897
Author:Carter
Publisher:McGraw Hill
SEE MORE TEXTBOOKS