Question 1

The probability of obtaining specific outcomes in a Bernoulli process is described by the binomial probability distribution.

Accepted Answer

A) True 
 B)False

Question 2

For df1 = 34 and df2 = 15, what value of the F-statistic is required such that P(F>f)= 0.1?

Accepted Answer

Question 3

Data for a particular subdivision near downtown Houston indicate that the average price per square foot for a home is $100 with a standard deviation of $5 (normally distributed).What is the probability that the average price per square foot for a home is less than $85?

Accepted Answer

A) 0.001 
B) 0.999 
C) 0.618 
D) 0.382 
A) 0.001 
B) 0.999 
C) 0.618 
D) 0.382

Question 4

If the sale of ice cream and pizza are independent, then as ice cream sales decrease by 60 percent during the winter months, pizza sales will

Accepted Answer

A) increase by 60 percent. 
B) increase by 40 percent. 
C) decrease by 40 percent. 
D) be unrelated. 
A) increase by 60 percent. 
B) increase by 40 percent. 
C) decrease by 40 percent. 
D) be unrelated.

Question 5

The number of phone calls coming into a switchboard in the next five minutes will either be 0, 1, 2, 3, 4, 5, or 6.The probabilities are the same for each of these (1/7).If X is the number of calls arriving in a five-minute time period, what is the mean of X?

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 5 
A) 2 
B) 3 
C) 4 
D) 5

Question 6

Data for a particular subdivision near downtown Houston indicate that the average price per square foot for a home is $100 with a standard deviation of $5 (normally distributed).What is the probability that the average price per square foot for a home is greater than $110?

Accepted Answer

A) 0 
B) 0.023 
C) 0.841 
D) 0.977 
A) 0 
B) 0.023 
C) 0.841 
D) 0.977

Question 7

Mutually exclusive events exist if only one of the events can occur on any one trial.

Accepted Answer

A) True 
 B)False

Question 8

The time required to travel downtown at 10 a.m.on Monday morning is known to be normally distributed with a mean of 40 minutes and a standard deviation of 5 minutes.What is the probability that it will take less than 35 minutes?

Accepted Answer

A) 0.84134 
B) 0.15866 
C) 0.53983 
D) 0.46017 
A) 0.84134 
B) 0.15866 
C) 0.53983 
D) 0.46017

Question 9

Which of the following is not true about continuous random variables?

Accepted Answer

A) They have an infinite set of values. 
B) The area under each of the curves represents probabilities. 
C) The entire area under each of the curves equals 1. 
D) They can only be integer values. 
A) They have an infinite set of values. 
B) The area under each of the curves represents probabilities. 
C) The entire area under each of the curves equals 1. 
D) They can only be integer values.

Question 10

Assume you have a normal distribution representing the likelihood of completion times.The mean of this distribution is 10, and the standard deviation is 3.The probability of completing the project in 8 or fewer days is the same as the probability of completing the project in 18 days or more.

Accepted Answer

A) True 
 B)False

Question 11

A company is considering producing some new Gameboy electronic games.Based on past records, management believes that there is a 70 percent chance that each of these will be successful and a 30 percent chance of failure.Market research may be used to revise these probabilities.In the past, the successful products were predicted to be successful based on market research 90 percent of the time.However, for products that failed, the market research predicted these would be successes 20 percent of the time.If market research is performed for a new product, what is the probability that the results indicate a successful market for the product and the product is actually not successful?

Accepted Answer

A) 0.63 
B) 0.06 
C) 0.07 
D) 0.24 
A) 0.63 
B) 0.06 
C) 0.07 
D) 0.24

Question 12

The variance of a binomial distribution is expressed as np/(1 - p), where n equals the number of trials and p equals the probability of success of any individual trial.

Accepted Answer

A) True 
 B)False

Question 13

Bayes' theorem is used to calculate

Accepted Answer

A) revised probabilities. 
B) joint probabilities. 
C) prior probabilities. 
D) subjective probabilities. 
A) revised probabilities. 
B) joint probabilities. 
C) prior probabilities. 
D) subjective probabilities.

Question 14

At a university with 1,000 business majors, there are 200 business students enrolled in an introductory statistics course.Of these 200 students, 50 are also enrolled in an introductory accounting course.There are an additional 250 business students enrolled in accounting but not enrolled in statistics.If a business student is selected at random, what is the probability that the student is enrolled in neither accounting nor statistics?

Accepted Answer

A) 0.45 
B) 0.50 
C) 0.55 
D) 0.05 
A) 0.45 
B) 0.50 
C) 0.55 
D) 0.05

Question 15

Disco Fever is randomly found in one half of one percent of the general population.Testing a swatch of clothing for the presence of polyester is 99% effective in detecting the presence of this disease.The test also yields a false-positive in 4% of the cases where the disease is not present.What is the probability that the test result comes back negative regardless of whether the disease is present?

Accepted Answer

A) 0.9553 
B) 0.8994 
C) 0.9999 
D) 0.9762 
A) 0.9553 
B) 0.8994 
C) 0.9999 
D) 0.9762

Question 16

Subjective probability assessments depend on

Accepted Answer

A) the total number of trials. 
B) the relative frequency of occurrence. 
C) the number of occurrences of the event. 
D) experience and judgment. 
A) the total number of trials. 
B) the relative frequency of occurrence. 
C) the number of occurrences of the event. 
D) experience and judgment.

Question 17

Customer arrivals are exponentially distributed and occur on average every 10 minutes.What is the standard deviation of customer interarrival times?

Accepted Answer

The answer of Customer arrivals are exponentially distributed and occur...

Question 18

The standard deviation equals the square of the variance.

Accepted Answer

A) True 
 B)False

Question 19

Using a standard deck of 52 cards, explain why the situation of drawing a 7 and a club is not collectively exhaustive.

Accepted Answer

It is possible to dr

Question 20

The time required to travel downtown at 10 a.m.on Monday morning is known to be normally distributed with a mean of 40 minutes and a standard deviation of 5 minutes.What is the probability that it will take more than 40 minutes?

Accepted Answer

A) 0.2500 
B) 0.0625 
C) 1.000 
D) 0.5000 
A) 0.2500 
B) 0.0625 
C) 1.000 
D) 0.5000

The probability of obtaining specific outcomes in a Bernoulli process is described by the binomial probability distribution.

For df₁ = 34 and df₂= 15, what value of the F-statistic is required such that P(F>f)= 0.1?

Data for a particular subdivision near downtown Houston indicate that the average price per square foot for a home is $100 with a standard deviation of $5 (normally distributed).What is the probability that the average price per square foot for a home is less than $85?

If the sale of ice cream and pizza are independent, then as ice cream sales decrease by 60 percent during the winter months, pizza sales will

The number of phone calls coming into a switchboard in the next five minutes will either be 0, 1, 2, 3, 4, 5, or 6.The probabilities are the same for each of these (1/7).If X is the number of calls arriving in a five-minute time period, what is the mean of X?

Data for a particular subdivision near downtown Houston indicate that the average price per square foot for a home is $100 with a standard deviation of $5 (normally distributed).What is the probability that the average price per square foot for a home is greater than $110?

Mutually exclusive events exist if only one of the events can occur on any one trial.

The time required to travel downtown at 10 a.m.on Monday morning is known to be normally distributed with a mean of 40 minutes and a standard deviation of 5 minutes.What is the probability that it will take less than 35 minutes?

Which of the following is not true about continuous random variables?

Assume you have a normal distribution representing the likelihood of completion times.The mean of this distribution is 10, and the standard deviation is 3.The probability of completing the project in 8 or fewer days is the same as the probability of completing the project in 18 days or more.

The variance of a binomial distribution is expressed as np/(1 - p), where n equals the number of trials and p equals the probability of success of any individual trial.

Bayes' theorem is used to calculate

Subjective probability assessments depend on

Customer arrivals are exponentially distributed and occur on average every 10 minutes.What is the standard deviation of customer interarrival times?

The standard deviation equals the square of the variance.

Using a standard deck of 52 cards, explain why the situation of drawing a 7 and a club is not collectively exhaustive.

The time required to travel downtown at 10 a.m.on Monday morning is known to be normally distributed with a mean of 40 minutes and a standard deviation of 5 minutes.What is the probability that it will take more than 40 minutes?

Introduction to Quantitative Analysis

Decision Analysis

Regression Models

Forecasting

Inventory Control Models

Linear Programming Models: Graphical and Computer Methods

Linear Programming Applications

Transportation, Assignment, and Network Models

Integer Programming, Goal Programming, and Nonlinear Programming

Project Management

Waiting Lines and Queuing Theory Models

Simulation Modeling

Markov Analysis

Statistical Quality Control

Analytic Hierarchy Process

Dynamic Programming

Decision Theory and the Normal Distribution

Game Theory

Mathematical Tools: Determinants and Matrices

Calculus-Based Optimization

Linear Programming: The Simplex Method

Transportation, Assignment, and Network Algorithms

Filters

Exam 2: Probability Concepts and Applications

The probability of obtaining specific outcomes in a Bernoulli process is described by the binomial probability distribution.

For df1 = 34 and df2 = 15, what value of the F-statistic is required such that P(F>f)= 0.1?

Data for a particular subdivision near downtown Houston indicate that the average price per square foot for a home is $100 with a standard deviation of $5 (normally distributed).What is the probability that the average price per square foot for a home is less than $85?

If the sale of ice cream and pizza are independent, then as ice cream sales decrease by 60 percent during the winter months, pizza sales will

The number of phone calls coming into a switchboard in the next five minutes will either be 0, 1, 2, 3, 4, 5, or 6.The probabilities are the same for each of these (1/7).If X is the number of calls arriving in a five-minute time period, what is the mean of X?

Data for a particular subdivision near downtown Houston indicate that the average price per square foot for a home is $100 with a standard deviation of $5 (normally distributed).What is the probability that the average price per square foot for a home is greater than $110?

Mutually exclusive events exist if only one of the events can occur on any one trial.

The time required to travel downtown at 10 a.m.on Monday morning is known to be normally distributed with a mean of 40 minutes and a standard deviation of 5 minutes.What is the probability that it will take less than 35 minutes?

Which of the following is not true about continuous random variables?

Assume you have a normal distribution representing the likelihood of completion times.The mean of this distribution is 10, and the standard deviation is 3.The probability of completing the project in 8 or fewer days is the same as the probability of completing the project in 18 days or more.

The variance of a binomial distribution is expressed as np/(1 - p), where n equals the number of trials and p equals the probability of success of any individual trial.

Bayes' theorem is used to calculate

Subjective probability assessments depend on

Customer arrivals are exponentially distributed and occur on average every 10 minutes.What is the standard deviation of customer interarrival times?

The standard deviation equals the square of the variance.

Using a standard deck of 52 cards, explain why the situation of drawing a 7 and a club is not collectively exhaustive.

The time required to travel downtown at 10 a.m.on Monday morning is known to be normally distributed with a mean of 40 minutes and a standard deviation of 5 minutes.What is the probability that it will take more than 40 minutes?

Introduction to Quantitative Analysis

Decision Analysis

Regression Models

Forecasting

Inventory Control Models

Linear Programming Models: Graphical and Computer Methods

Linear Programming Applications

Transportation, Assignment, and Network Models

Integer Programming, Goal Programming, and Nonlinear Programming

Project Management

Waiting Lines and Queuing Theory Models

Simulation Modeling

Markov Analysis

Statistical Quality Control

Analytic Hierarchy Process

Dynamic Programming

Decision Theory and the Normal Distribution

Game Theory

Mathematical Tools: Determinants and Matrices

Calculus-Based Optimization

Linear Programming: The Simplex Method

Transportation, Assignment, and Network Algorithms

Filters

For df₁ = 34 and df₂= 15, what value of the F-statistic is required such that P(F>f)= 0.1?