Questions
CoastCo Insurance, Inc., is interested in developing a forecast of larceny thefts in the United States....

CoastCo Insurance, Inc., is interested in developing a forecast of larceny thefts in the United States. It has found the following data:

(c1p11) Year Larceny Thefts* Year Larceny Thefts*
1 4,151 10 7,194
2 4,348 11 7,143
3 5,263 12 6,713
4 5,978 13 6,592
5 6,271 14 6,926
6 5,906 15 7,257
7 5,983 16 7,500
8 6,578 17 7,706
9 7,137 18 7,872

Plot this series in a time-series plot and make a naive forecast for years 2 through 19. Calculate the MAPE for years 2 through 18. On the basis of these measures and what you see in the plot, what do you think of your forecast? Explain. (Please show work)

In: Statistics and Probability

The main sources of health insurance in the United States include all of the following except...

The main sources of health insurance in the United States include all of the following except

A.

​for-profit firms such as Aetna and John Hancock.

B.

household​ co-operatives, or​ co-ops.

C.

the​ government, through programs such as​ Medicare, Medicaid, and the Veterans Administration.

D.

​non-profit firms such as the Blue Cross and Blue Shield organizations.

In: Economics

1. CoastCo Insurance is interested in developing a forecast of larceny thefts in the United States....

1. CoastCo Insurance is interested in developing a forecast of larceny thefts in the United States.

Year Larcency Thefts*
1 8,151
2 8,348
3 9,263
4 9,978
5 10,271
6 9,906
7 9,983
8 10,578
9 11,137
10 11,194
11 11,143
12 10,713
13 10,592
14 10,926
15 11,257
16 11,500
17 11,706
18 11,872
  1. Plot this series in a time series plot and make a naive forecast for years 2 through 19.
  2. Plot actual and forecast values of the series for the years 1 through 19. (You will not have an actual value for year 19 or a forecast value for year 1.)
  3. Calculate the RMSE and MAD for years 2 through 18. On the basis of these measures and what you see in the plot, what do you think of your forecast? Explain.

In: Economics

The mean cost of domestic airfares in the United States rose to an all-time high of...

The mean cost of domestic airfares in the United States rose to an all-time high of $370 per ticket. Airfares were based on the total ticket value, which consisted of the price charged by the airlines plus any additional taxes and fees. Assume domestic airfares are normally distributed with a standard deviation of $120. Use Table 1 in Appendix B.

a. What is the probability that a domestic airfare is $550 or more (to 4 decimals)?

b. What is the probability that a domestic airfare is $245 or less (to 4 decimals)?

c. What if the probability that a domestic airfare is between $320 and $480 (to 4 decimals)?

d. What is the cost for the 5% highest domestic airfares? (rounded to nearest dollar)

In: Statistics and Probability

New York City is the most expensive city in the United States for lodging. The mean...

New York City is the most expensive city in the United States for lodging. The mean hotel room rate is $204 per night (USA Today, April 30, 2012). Assume that room rates are normally distributed with a standard deviation of $55. a. What is the probability that a hotel room costs $225 or more per night (to 4 decimals)? b. What is the probability that a hotel room costs less than $140 per night (to 4 decimals)? c. What is the probability that a hotel room costs between $200 and $300 per night (to 4 decimals)? d. What is the cost of the 20% most expensive hotel rooms in New York City? Round up to the next dollar. $ or

In: Statistics and Probability

According to a recent study annual per capita consumption of milk in the United States is...

According to a recent study annual per capita consumption of milk in the United States is 22.6 gallons. Being from the Midwest, you believe milk consumption is higher there and wish to test your hypothesis. A sample of 14 individuals from the Midwestern town of Webster City was selected and then each person's milk consumption was entered into the Microsoft Excel Online file below. Use the data to set up your spreadsheet and test your hypothesis.

25.8
23.84
25.25
21.2
17.52
19.61
19.83
26.18
34.97
30.1
28.59
20.57
26.94
27.24

a) What is a point estimate of the difference between mean annual consumption in Webster City and the national mean? (2 decimals)

b) At ? = 0.05, test for a significant difference by completing the following. Calculate the value of the test statistic (2 decimals).

c) The p-value is (4 decimals)

In: Statistics and Probability

Choose a public company in the United States and report on its stock performance. Answer the...

Choose a public company in the United States and report on its stock performance. Answer the following questions:

  1. Provide a brief company description.
  2. What it its stock symbol?
  3. What is its current stock price (report the date/time you note the price).
  4. What is the number of outstanding shares? What does this say about the company?
  5. What is the one week, one month, and one year price range?
  6. What are the earnings per share (EPS)? What does this mean?
  7. What latest news about this company have been reported and how did the news affect the stock price?
  8. Would you invest into this company? If so, would it be long or short-term? Explain.

Do NOT use Apple, Google, Tesla, or Facebook stocks.

In: Economics

New York City is the most expensive city in the United States for lodging. The mean...

New York City is the most expensive city in the United States for lodging. The mean hotel room rate is $204 per night. Assume that room rates are normally distributed with a standard deviation of $55.

a. What is the probability that a hotel room costs $225 or more per night?

b. What is the probability that a hotel room costs less than $140 per night?

c. What is the probability that a hotel room costs between $200 and $300 per night?

d. What is the cost of the 20% most expensive hotel rooms in the New York City?

In: Statistics and Probability

At one time in the past land was plentiful in the United States. Garbage disposal meant...

At one time in the past land was plentiful in the United States. Garbage disposal meant hauling trash to the landfill and covering it. Consumers paid someone for this task, and for the most part that was the end of the story. As land has become scarcer and the amount of hazardous waste has increased, differing views on garbage have transpired. Since most products come with packaging and most will be thrown away eventually, it has been proposed that a disposal charge be placed on products at the point of production instead of the point of disposal. Please analyze this proposal from an economic point of view. Include externalities in your discussion.

In: Economics

According to a recent study annual per capita consumption of milk in the United States is...

According to a recent study annual per capita consumption of milk in the United States is 21.5 gallons. Being from the Midwest, you believe milk consumption is higher there and wish to test your hypothesis. A sample of 14 individuals from the Midwestern town of Webster City was selected and then each person's milk consumption was entered into the Microsoft Excel Online file below. Use the data to set up your spreadsheet and test your hypothesis.

Given Data:

Gallons of Milk
25.5
23.84
25.25
21
17.52
19.61
19.83
26.18
34.97
30.2
28.59
20.57
26.94
27.24

1. What is a point estimate of the difference between mean annual consumption in Webster City and the national mean? ______ (2 decimals)

2. At ? = 0.05, test for a significant difference by completing the following.

Calculate the value of the test statistic (2 decimals). ______

The p-value is _______ (4 decimals)

In: Statistics and Probability