Statistics

Respond with the word RED to show you have read and understood the assignment. Due within  hours.

The option that offers the greatest expected return is the best investment

Expected return for stock market

Expected return=

                              = (0.15 25%) + (0.35 20%)+ (0.25 5%) + (0.25 -14%)

                              = 8.5%

Expected return for gold

Expected return=

                              = (0.15 -30%) + (0.35 -9%)+ (0.25 5%) + (0.25 50%)

                              = 13.6%

Decision

Since the expected return for gold is higher than for the stock market, it is better to invest in gold.

****You base your answer on the amount of expected return. What if you calculated the risk involved with each? Would you choose the same? Calculate the risk for each and show your work.******

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Statistics

Read the following information and answer questions 1 through 7:

The Chief of Police of Boston City observes that the number of citations for driving while under the influence is higher for one county than they are for another county.

County A, the county with the lower number of citations for driving while under the influence enforces a minimum of six months of intensive treatment, 1,000 hours of community service, and loss of license privileges for 30 days for first time offenders. The Chief decides to compile data to support his observation. He notes that the weekly average for County B is 79 DUIs per week. He sees from his data that County A has an average of 35 DUIs per week. Based on this information, the Chief concludes that County A has a lower number of DUIs compared to the number of DUIs occurring in County B. He decides that he is going to take action to decrease the number of DUIs in County B.

Imagine that you are a consultant hired for Boston City Police Department and respond to the following items:
1. Evaluate the Chief’s conclusion.
2. Now consider that you have been provided with the following additional information: The standard deviation for County A is 3.4 DUIs and 6.1 for County B. A t-test was conducted and a p value of 0.09 was obtained.State how this new information influences the conclusion.
3. The Chief is very disillusioned with your critique. He tells you that data was collected for a period over 52 weeks to get his average number of weekly DUIs for each county. He emphasizes the great expense and time involved in his data collection. He tells you that he is willing to collect data for another 52 weeks for each county in order to get his results “statistically sound.” He asks if this will satisfy you into agreeing with his original conclusions. State what you would tell him about the need for collecting data on each county for another 52 weeks.
4. Provide him with at least two suggestions to help him decrease the expense and time involved in his data collection.
5. Describe the reasons why a t-test is the appropriate statistical test to use in this situation.
6. Comment on the variables related to the power of this study.
7. Comment on this study’s issues related to the decisional error.

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statistics

Critically analyze current European and United States industry standards or recommendations for any Information Technology (IT) area or subarea (e.g., intrusion detection, data recovery, data retention, intrusion prevention, network infrastructure, identity validation, project management, telecommunications, etc.).  Compare and contrast the standards or recommendations identifying any similarities and differences between them.  Be sure to identify which standard is better.  Remember to support your opinion with factual information. 


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