Reconsider the data from the previous exercise about investigating whether giving chest-compression-only (CC) instructions rather than standard

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Reconsider the data from the previous exercise about investigating whether giving chest-compression-only (CC) instructions rather than standard cardiopulmonary resuscitation (CPR) instructions to the witness of a heart attack will improve the victim’s chance of surviving.
a. Which of the following is the appropriate null hypothesis? Choose one.
A. Giving CC instructions is just as eff ective as giving CPR instructions at saving lives of heart attack victims.
B. Giving CC instructions is more eff ective than giving CPR instructions at saving lives of heart attack victims.
C. Giving CC instructions is less eff ective than giving CPR instructions at saving lives of heart attack victims.


b. Which of the following is the appropriate alternative hypothesis? Choose one.
A. Giving CC instructions is just as eff ective as giving CPR instructions at saving lives of heart attack victims.
B. Giving CC instructions is more eff ective than giving CPR instructions at saving lives of heart attack victims.
C. Giving CC instructions is less eff ective than giving CPR instructions at saving lives of heart attack victims.


Suppose that we want to use cards to carry out a tactile simulation to investigate whether giving chest- compressiononly (CC) instructions rather than standard cardiopulmonary resuscitation (CPR) instructions to the witness of a heart attack will improve the victim’s chance of surviving.

c. In total, how many cards will we need?
d. We need cards of different colors. How many colors do we need? How many cards of each color do we need? Explain.
e. We shuffle the stack of cards and deal them into multiple piles. How many piles should we make and how many cards should we place in each pile? Why?
f. What statistic should you record aft er we have shuffled and dealt the cards into two piles? (Hint: Th ere is more than one correct answer here.)
g. Suppose that we have repeated the shuffle and deal many times and recorded the appropriate statistic every single time. What should we do next to fi nd the p-value?
h. Which of the following is the purpose of shuffling and dealing cards into two piles repeatedly and recording a chosen statistic value for each repetition?
A. To generate more samples
B. To improve accuracy of the study

C. To generate values of the statistic that could have happened by chance alone
D. All of the above

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Related Book For  book-img-for-question

Introduction To Statistical Investigations

ISBN: 9781118172148

1st Edition

Authors: Beth L.Chance, George W.Cobb, Allan J.Rossman Nathan Tintle, Todd Swanson Soma Roy

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