ANSWR  BOTH PARTS Q1pollster stands at the entrance to a stadium and asks the first 789people that enter the stadium who they plan to vote for in the upcoming election. 56% say they plan to vote for Candidate X. Later, when the election results are counted, Candidate X actually earns 24% of the votes.   What is the sampling error for Candidate X? Explain how you know.   Q2In the 1950s, a treatment for chest pain was invented where doctors increased blood flow to the heart using surgery. A cardiologist carried out an experiment where he performed the actual procedure on some patients (call them Group 1) but only made the initial incision on others (call them Group 2). Afterwards, both groups of patients reported the same amount of chest pain as before. Label your answer with a, b, and c.   a) What conclusion can you draw from this experiment? b) Which group was the control group? Did they receive a placebo treatment? Explain your answer. c) Is this a blind or double-blind study? Explain your answer

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
icon
Related questions
Question
100%
KINDLY ANSWR  BOTH PARTS
Q1pollster stands at the entrance to a stadium and asks the first 789people that enter the stadium who they plan to vote for in the upcoming election. 56% say they plan to vote for Candidate X. Later, when the election results are counted, Candidate X actually earns 24% of the votes.
 
What is the sampling error for Candidate X? Explain how you know.
 
Q2In the 1950s, a treatment for chest pain was invented where doctors increased blood flow to the heart using surgery. A cardiologist carried out an experiment where he performed the actual procedure on some patients (call them Group 1) but only made the initial incision on others (call them Group 2). Afterwards, both groups of patients reported the same amount of chest pain as before.
Label your answer with a, b, and c.
 
a) What conclusion can you draw from this experiment?
b) Which group was the control group? Did they receive a placebo treatment? Explain your answer.
c) Is this a blind or double-blind study? Explain your answer.
 
Expert Solution
steps

Step by step

Solved in 3 steps

Blurred answer
Knowledge Booster
Linear Equations
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, advanced-math and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Advanced Engineering Mathematics
Advanced Engineering Mathematics
Advanced Math
ISBN:
9780470458365
Author:
Erwin Kreyszig
Publisher:
Wiley, John & Sons, Incorporated
Numerical Methods for Engineers
Numerical Methods for Engineers
Advanced Math
ISBN:
9780073397924
Author:
Steven C. Chapra Dr., Raymond P. Canale
Publisher:
McGraw-Hill Education
Introductory Mathematics for Engineering Applicat…
Introductory Mathematics for Engineering Applicat…
Advanced Math
ISBN:
9781118141809
Author:
Nathan Klingbeil
Publisher:
WILEY
Mathematics For Machine Technology
Mathematics For Machine Technology
Advanced Math
ISBN:
9781337798310
Author:
Peterson, John.
Publisher:
Cengage Learning,
Basic Technical Mathematics
Basic Technical Mathematics
Advanced Math
ISBN:
9780134437705
Author:
Washington
Publisher:
PEARSON
Topology
Topology
Advanced Math
ISBN:
9780134689517
Author:
Munkres, James R.
Publisher:
Pearson,