Questions
True or False: An advantage of using behavioral data as the basis of segmentation, as opposed...

True or False: An advantage of using behavioral data as the basis of segmentation, as opposed to psychographic data, is that behavioral data generally has higher individual-level accessibility.

True

False

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Which of the following is NOT an appropriate way to decide the number of segments in a cluster analysis?

Choose the number of segments with the highest between_SS / total_SS percentage

Choose the number of segments at which the increase in the between_SS / total_SS percentage from adding one more segment is small

Choose the maximal number of segments such that the resulting segments are large and interpretable

In: Economics

Consider a two-stock portfolio.  Which one of the following statements about the expected return and risk is...

  1. Consider a two-stock portfolio.  Which one of the following statements about the expected return and risk is correct of the portfolio is correct?

A). The expected return of the portfolio is less than the weighted average of the returns of the two stocks as long as the correlation between the returns of the two stocks is less than 1, but the standard deviation of the portfolio return equals the weighted average of the standard deviations of the returns of the two stocks

B). The expected return of the portfolio equals the weighted average of the expected returns of the two stocks, but the standard deviation of the portfolio return is less than the weighted average of the standard deviations of the two stock returns as long as the correlation between the returns of the two stocks is less than 1

C). The standard deviation of the portfolio return is greater than the weighted average of the standard deviations of the returns of the two stocks if the correlation between the two stock returns is positive and lower if the correlation is negative

D). The expected return of the portfolio equals the sum of the expected returns of the two stocks and the standard deviation of the portfolio return equals the sum of the standard deviation of the returns of the two stocks

  1. An individual can choose between two investments, each of which require a $10,000 investment.   Project A will pay off $8,000 with probability 0.10, $11,000 with probability 0.80, and $13,000 with probability 0.10.  Project B will pay $7,250 with probability 0.20, $11,000 with probability 0.60, and $$14,250 2ith probability 0.20.  Which investment would a risk-averse investor choose and what is the rationale for the choice?

A). Project B because the two projects have the same expected return but Project B provides the largest chance to get the highest return

B). The investor is indifferent since both investments provide the same expected return

C). Project B because the two projects have the same expected return but Project B has the highest standard deviation

D). Project A because the two projects have the same expected return but Project A has the lowest standard deviation

In: Finance

1.. How many total jobs in the U.S. were supported by FDI in the U.S. (direct...

1.. How many total jobs in the U.S. were supported by FDI in the U.S. (direct and indirect) in 2013?

2. Which state’s exports supported the highest number of jobs? How many? Which state was number 2?  

3. Which are the top 2 industries in Texas for exports?

4.What is the dollar value of Texas exports going to Mexico (in billions)?

In: Economics

Using Java, write a program that allows the user to play the Rock-Paper-Scissors game against the...

Using Java, write a program that allows the user to play the Rock-Paper-Scissors game against the computer through a user interface. The user will choose to throw Rock, Paper or Scissors and the computer will randomly select between the two. In the game, Rock beats Scissors, Scissors beats Paper, and Paper beats Rock. The program should then reveal the computer's choice and print a statement indicating if the user won, the computer won, or if it was a tie. Allow the user to continue playing until they chooses to stop. Once they stop, print the number of user wins, losses, and ties.

In: Computer Science

In order to implement the classic DoS flood attack, the attacker must generate a sufficiently large...

In order to implement the classic DoS flood attack, the attacker must generate a sufficiently large volume of packets to exceed the capacity of the link to the target organization. Consider an attack using ICMP echo request (ping) packets that are 500 bytes in size (ignoring framing overhead). How many of these packets per second must the attacker send to flood a target organization using a 30-Mbps link? How many per second if the attacker uses a 100-Mbps link? Or a 1-Gbps link?

In: Computer Science

Open the Cisco packet Tracer. Select and add three 3560‐24ps switch to the Cisco packet tracer...

Open the Cisco packet Tracer.

  1. Select and add three 3560‐24ps switch to the Cisco packet tracer window.
  2. Connect each of the switches using cross over cables.
  3. Add three end devices, generic PCs.
  4. Connect each pc to a separate switch using copper strait‐through cables.
  5. When you have completed the steps above; your packet tracer should look like the diagram below and the PCs must be able to ping to each other.

In: Computer Science

1.) In the library on a university campus, there is a sign in the elevator that...

1.) In the library on a university campus, there is a sign in the elevator that indicates a limit of 16 persons. In addition, there is a weight limit of 2,500 pounds. Assume that the average weight of students, faculty, and staff on campus is 155 pounds, that the standard deviation is 27 pounds, and that the distribution of weights of individuals on campus is approximately normal. Suppose a random sample of 16 persons from the campus will be selected.

a. What is the standard deviation of the sampling distribution of x bar?

b. What mean weights (in pounds) for a sample of 16 people will result in the total weight exceeding the weight limit of 2,500 pounds? The mean weight of 16 persons needs to be greater than _____lbs to exceed the weight limit of the elevator.

c. What is the probability that a random sample of 16 people will exceed the weight limit? (Use a table or technology. Round your answer to four decimal places.)

2. In a survey of 485 potential jurors, one study found that 340 were regular watchers of at least one crime-scene forensics television series. Assuming that it is reasonable to regard this sample of 485 potential jurors as representative of potential jurors in the United States, use the given information to construct a 95% confidence interval for the true proportion of potential jurors who regularly watch at least one crime-scene investigation series. (Use Table 3 in Appendix A. Give the answer to three decimal places.) ( ______, ________) please in this form.

3. In a survey of 1000 randomly selected adults in the United States, participants were asked what their most favorite and what their least favorite subject was when they were in school (Associated Press, August 17, 2005). In what might seem like a contradiction, math was chosen more often than any other subject in both categories! Math was chosen by 224 of the 1000 as the favorite subject, and it was also chosen by 366 of the 1000 as the least favorite subject.

(_____, .2498)

4. Many consumers pay careful attention to stated nutritional contents on packaged foods when making purchases. It is therefore important that the information on packages be accurate. A random sample of n = 12 frozen dinners of a certain type was selected from production during a particular period, and the calorie content of each one was determined. (This determination entails destroying the product, so a census would certainly not be desirable!) Here are the resulting observations, along with a boxplot and normal probability plot

the values are

255 244 239 242 265 245 259 248
225 226 251 233

a. Carry out a formal test of the hypotheses suggested in part (b). (Use Table 4 in Appendix A. Use α = 0.05. Round your test statistic to two decimal places and your P-value to three decimal places.)

t= ___

df= 11

P= ___

please answer all parts, i appreciate it.

In: Statistics and Probability

Diet Fractions. Roll 2 dice and use the numbers to make a fraction less than or...

Diet Fractions. Roll 2 dice and use the numbers to make a fraction less than or equal to 1. Player A wins if the fraction cannot be reduced; otherwise, player B wins. a. Play the game 50 times and record the results. b. Is the game fair or not? Why or why not? c. Using the sample space for 2 dice, compute the probabilities of winning for player A and for player B. Do these agree with the results obtained in part a?

In: Statistics and Probability

During the presidential debate in 1990, the candidate Arnold (Democratic) won 22 states and Joseph (Republican)...

During the presidential debate in 1990, the candidate Arnold (Democratic) won 22 states and Joseph (Republican) won 26 states. We are given that the states mean/average for Arnold came out to be 13.545 of the votes with a standard deviation of 10.591. On the contrary, Joseph had an average/mean of 8.423 of the votes with a standard deviation of 6.777. Please compute a 99% Conf. Interval for # of votes in a state a Democratic wins minus the # in a state a Republican wins.

In: Statistics and Probability

Predict and explain which of these four compounds (aspirin, acetaminophen, ibuprofen, and caffeine) has the highest...

Predict and explain which of these four compounds (aspirin, acetaminophen, ibuprofen, and caffeine) has the highest Rf value and which one has the lowest Rf value. Refer to their number and polarity of their functional groups to explain the answer in sentence format.

In: Chemistry