Statistics Chapter 17

Descrição

Chapter 17 review quiz
Bradford Richard
Quiz por Bradford Richard, atualizado more than 1 year ago
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Resumo de Recurso

Questão 1

Questão
There are three components to any decision:
Responda
  • 1. the choices available, or alternatives 2. the states of nature, which are not under the control of the decision maker 3. the payoffs
  • 1. The goals of the decider 2. The steps to reach the goal 3. The risks invovled
  • 1. The total list of options 2. The option with the best return 3. Selecting the best option

Questão 2

Questão
Event
Responda
  • Uncertainty regarding future demand. State of nature (future demand) unknown. Decision maker has no control over state of nature.
  • Two or more courses of action open to decision maker. Decision maker must evaluate alternatives. Decision maker selects a course of action based on certain criteria. Depending on the set of circumstances, these criteria may be quantitative, psychological, sociological, and so on.
  • Profit. Break even. Loss.

Questão 3

Questão
Act
Responda
  • Uncertainty regarding future demand. State of nature (future demand) unknown. Decision maker has no control over state of nature.
  • Two or more courses of action open to decision maker. Decision maker must evaluate alternatives. Decision maker selects a course of action based on certain criteria. Depending on the set of circumstances, these criteria may be quantitative, psychological, sociological, and so on.
  • Profit. Break even. Loss.

Questão 4

Questão
Outcome Payoff Consequence
Responda
  • Profit. Break even. Loss.
  • Two or more courses of action open to decision maker. Decision maker must evaluate alternatives. Decision maker selects a course of action based on certain criteria. Depending on the set of circumstances, these criteria may be quantitative, psychological, sociological, and so on.
  • Uncertainty regarding future demand. State of nature (future demand) unknown. Decision maker has no control over state of nature.

Questão 5

Questão
EMV(Ai)
Responda
  • refers to the expected monetary value of decision alternative, i. There may be many decisions possible. We will let 1 stand for the first decision, 2 for the second, and so on. The lower- case letter i represents the entire set of decisions.
  • refers to the probability of the states of nature. There can be an unlimited number, so we will let j represent this possible outcome.
  • refers to the value of the payoffs. Note that each payoff is the result of a combination of a decision alternative and a state of nature.

Questão 6

Questão
P(Sj)
Responda
  • refers to the probability of the states of nature. There can be an unlimited number, so we will let j represent this possible outcome.
  • refers to the value of the payoffs. Note that each payoff is the result of a combination of a decision alternative and a state of nature.
  • refers to the expected monetary value of decision alternative, i. There may be many decisions possible. We will let 1 stand for the first decision, 2 for the second, and so on. The lower- case letter i represents the entire set of decisions.

Questão 7

Questão
V(Ai, Sj)
Responda
  • refers to the value of the payoffs. Note that each payoff is the result of a combination of a decision alternative and a state of nature.
  • refers to the probability of the states of nature. There can be an unlimited number, so we will let j represent this possible outcome.
  • refers to the expected monetary value of decision alternative, i. There may be many decisions possible. We will let 1 stand for the first decision, 2 for the second, and so on. The lower- case letter i represents the entire set of decisions.

Questão 8

Questão
A method to analyze a decision regarding which property to buy is to determine the profit that might be lost because the state of nature (the market behaviour) was not known at the time the land developer bought the land.
Responda
  • opportunity loss or regret
  • opportunity gains
  • best decision method
  • opportunity decision regret

Questão 9

Questão
An opportunity loss table can be developed by taking:
Responda
  • The difference between the optimal decision and any other decision made.
  • The difference between the opportunity loss and the optimal decision made.
  • The difference between the opportunity loss and any other decision made
  • The difference between the optimal and the least optimal decisions.

Questão 10

Questão
EOL(Ai)
Responda
  • refers to the expected opportunity loss for a particular decision alternative.
  • refers to the probability associated with the states of nature, j.
  • refers to the regret or loss for a particular combination of a state of nature and a decision alternative.

Questão 11

Questão
P(Sj)
Responda
  • refers to the expected opportunity loss for a particular decision alternative.
  • refers to the probability associated with the states of nature, j.
  • refers to the regret or loss for a particular combination of a state of nature and a decision alternative.

Questão 12

Questão
R(Ai, Sj)
Responda
  • refers to the expected opportunity loss for a particular decision alternative.
  • refers to the probability associated with the states of nature, j.
  • refers to the regret or loss for a particular combination of a state of nature and a decision alternative.

Questão 13

Questão
The lowest expected opportunity loss and highest expected payoff will...
Responda
  • Always lead to the same decision concerning which course of action to follow.
  • Always lead to the opposite decision concerning which course of action to follow.
  • Usually lead to a similar decision concerning which course of action to follow.
  • Always lead to a different decision concerning which course of action to follow.

Questão 14

Questão
maximin strategy
Responda
  • The strategy that maximizes the minimum gain
  • The strategy that maximizes the maximum gain
  • The strategy that minimizes the maximum regret

Questão 15

Questão
maximax strategy
Responda
  • The strategy that maximizes the minimum gain
  • The strategy that maximizes the maximum gain
  • The strategy that minimizes the maximum regret

Questão 16

Questão
minimax regret strategy
Responda
  • The strategy that maximizes the minimum gain
  • The strategy that maximizes the maximum gain
  • The strategy that minimizes the maximum regret

Questão 17

Questão
Value of perfect information is
Responda
  • The difference between the maximum payoff under conditions of certainty and the maximum payoff under uncertainty.
  • The difference between the minimum payoff under conditions of uncertainty and the minimum payoff under certainty.
  • Very valuable information
  • Statistical data with a zero degree of error.

Questão 18

Questão
Sensitivity analysis
Responda
  • lets you see how accurate the probability estimates must be to feel comfortable with your choice.
  • Analysis how sensitive the data is to inclimate weather or acts of god.
  • Is the first step in the decision process.
  • Compares objections being voiced with history of experiences.

Questão 19

Questão
Decision trees
Responda
  • Present a picture of the various courses of action and the possible states of nature.
  • Are long term plans to continually make the best decisions over time.
  • Is a method of growing the accuracy of a choice with more data.
  • Is an alphabetical list of all decisions options.

Questão 20

Questão
backward induction
Responda
  • Is a strategy to find the best decision in a decision tree.
  • Is a common mistake made by statisticians.
  • Is a decision tree constructed backwards.
  • Is the process of making a decision and verifying it afterwards.

Questão 21

Questão
The various courses of action are called
Responda
  • The acts or alternatives
  • The decisions
  • The probabilities
  • The Consequences

Questão 22

Questão
The uncontrollable future events are called
Responda
  • The acts or alternatives
  • The decisions
  • The states of Nature
  • The payoff table

Questão 23

Questão
The consequence of a particular decision alternative and state of nature is called
Responda
  • The payoff
  • The states of nature
  • The Probabilities
  • The acts or alternatives

Questão 24

Questão
Probabilities are usually assigned to
Responda
  • The states of nature
  • The acts or alternatives
  • The payoff
  • The decision

Questão 25

Questão
All possible combinations of decision alternatives and states of nature result in
Responda
  • A payoff table
  • The states of nature
  • The acts or alternatives
  • The probabilities

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