Questions from Business Statistics

Q: Would you indeed lose money if you leased and extracted immediately?

Would you indeed lose money if you leased and extracted immediately? How much money?

Q: Continue the scenario analysis by computing the future net payoff implied by

Continue the scenario analysis by computing the future net payoff implied by each of the future prices of oil. To do this, multiply the price of oil by the number of barrels, then subtract the cost of...

Q: Find the average future net payoff, less the cost of the

Find the average future net payoff, less the cost of the lease. How much, on average, would you gain (or lose) by leasing this oil field?

Q: How risky is this proposition?

How risky is this proposition?

Q: Is it better, as suggested, to multiply the endpoints of

Is it better, as suggested, to multiply the endpoints of the confidence interval by the target mailing size?

Q: Could it reasonably be that no ads are worthwhile, in a

Could it reasonably be that no ads are worthwhile, in a study for which 2 of 22 are significant?

Q: Consider experience as the Y variable and age as the X variable

Consider experience as the Y variable and age as the X variable. a. Draw a scatterplot and describe the relationship. b. Find the correlation coefficient. What does it tell you? Is it appropriate, com...

Q: You have a position open and are trying to hire a new

You have a position open and are trying to hire a new person. Assume that the new person’s experience will follow a normal distribution with the mean and (sample) standard deviation of your current em...

Q: Viewing the database in Appendix A as a random sample from a

Viewing the database in Appendix A as a random sample from a much larger population, consider the experience values. a. Find the 95% confidence interval. b. Find the 99.9% confidence interval.

Q: Viewing the database in Appendix A as a random sample from a

Viewing the database in Appendix A as a random sample from a much larger population, consider the percentage of women. Find the 95% confidence interval.