Janice and her cousin Linda are a little competitive about the relative merits of their home towns, Vancouver and Victoria, respectively.

Use the following information to answer the remaining questions: Janice and her cousin Linda are a little competitive about the relative merits of their home towns, Vancouver and Victoria, respectively. One contest they had was to determine if the proportion of rainy days was significantly different for their home towns. They found weather records on the internet and each of them randomly selected 60 days from the past 5 years. Janice found that there had been measurable rainfall on 17 of the 60 days she selected for Vancouver and Linda found that there had been measurable rainfall on 12 of the 60 days she selected for Victoria. They intend to perform a test of significance on their data, using the hypotheses H0: p_Van – p_Vic = 0 versus HA: p_Van – p_Vic ≠ 0 and the 0.05 significance level.

a)When calculating the test statistic, what is the standard deviation of the sampling distribution of the difference in proportions? Hint: As we observed back in Ch 4, the standard error is the standard deviation of the sampling distribution





b) Suppose that Janice and Linda’s test statistic is 1.07. Which of the following is closest to the appropriate P-value for the test? Then make your decision for this test: Would you reject H0 or fail to reject H0 at a 0.05 significance level?

0.1423; Reject H0

0.0446; Reject H0


0.1449; Fail to reject H0

0.1423; Fail to reject H0

0.2846; Fail to reject H0

0.2846; Reject H0

Bonus (worth 1 mark): Which of the following best describes what it would mean if Janice and Linda’s test resulted in a Type I error?

-Accepting the alternative hypothesis instead of rejecting the null hypothesis.

-Concluding that there is no difference in the proportion of rainy days in the two cities when there is a difference.

-Accepting the null hypothesis instead of rejecting the alternative hypothesis.

-Choosing the wrong test procedure, such as using a z-test instead of a t-test.

-Concluding that there is a difference in the proportion of rainy days in the two cities when there is no difference.


find the cost of your paper

Strategic Management Project

Assignment Content Review the Strategic Management Project Background and your strategic management research journal entries from Weeks 1–4. Create a 10-slide presentation for Caterpillar Inc. leadership in which you summarize your key findings, propose….

Case Problem Investment Strategy

Case Problem Investment Strategy J. D. Williams, Inc. is an investment advisory firm that manages more than $120 million in funds for its numerous clients. The company uses an asset allocation model that recommends the portion of each client’s portfolio to be invested in a growth stock fund, an income fund and a money market fund. To maintain diversity in each client’s portfolio, the firm places limits on the percentage of each portfolio that may be invested in each of the three funds. General guidelines indicate that the amount invested in the growth fund must be between 20% to 40% of the total portfolio value. Similar percentages for the other two funds stipulate that between 20% to 50% of the total portfolio must be in the income fund and at least 30% of the total portfolio value must be in the money market fund.   In addition, the company attempts to assess the risk tolerance of each client and adjust the portfolio to meet the needs of the individual investor. For example, Williams just contracted with a new client who has $800,000 to invest. Based on an evaluation of the client’s risk tolerance, Williams assigned a maximum risk index of 0.05 for the client. The firm’s risk indicators show the risk of the growth fund at 0.10, the income fund at 0.07 and the money market fund at 0.01. An overall portfolio risk index is computed as a weighted average of the risk rating for the three funds where the weights are the fraction of the client’s portfolio invested in each of the funds. Additionally, William’s is currently forecasting annual yields of 18% for the growth fund, 12.5% for the income fund and 7.5% fir the money market fund. Based on the information provided, how should the new client be advised to allocate $800,000 among the growth, income and money market funds? Develop a linear programming model that will provide the maximum yield for the portfolio. Use your model to develop a managerial report.   Managerial Report: a.Recommend how much of the $800,000 should be invested in each of the three funds. What is the annual yield you anticipate for the investment recommendation change? b.Assume that the client’s risk index could be increased to 0.055. How much would the yield increase and how would the investment recommendation change? c.Refer again to the original situation where the client’s risk index was assessed to be 0.05. How would your investment recommendation change if the annual yield for the growth fund were revised downward to 16% or even to 14%? d.Assume that the client expressed some concern about having too much money in the growth fund. How would the original recommendation change if the amount invested in the growth fund is not allowed to exceed the amount invested in the income fund? e.The asset allocation model you developed may be useful in modifying the portfolios for all the firm’s clients whenever the anticipated yields for the three funds are periodically revised. What is your recommendation as to whether use of this model is possible?  

Case Analysis

You can view the article (the case), “The Man Who Got Honeywell’s Groove Backt”, by linking to the course EReserves  Follow the Case Analysis Outline given in your syllabus. This is….