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Concrete Strength Researchers Olivia Carrillo-Gamboa and Richard Gunst presented the following data in their article, “Measurement-Error-Model Collinearities.” The data represent the compressive strength (in pounds per square inch) of a random sample of concrete 2 days, 7 days, and 28 days after pouring.

(a) Normal probability plots for each treatment indicate that the requirement of normality is satisfied. Verify that the requirement of equal population variances for each treatment is satisfied.

(b) Is there sufficient evidence that the mean strength is different among the three days at the  level of significance?

(c) If the null hypothesis from part (b) was rejected, use Tukey’s test to determine which pairwise means differ using a familywise error rate of .

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Michelin has five major geographic divisions: Europe, North America, Asia, South America, and Africa/India/Middle-East. The company faces fierce but different competitors in each segment. The external opportunities and threats that Michelin faces are different in each geographic segment, so each segment prepares its own list of key external success factors. This external analysis is critically important in strategic planning because a firm needs to exploit opportunities and avoid or, at least, mitigate threats. The purpose of this exercise is to develop divisional EFE matrices that Michelin could use in developing an overall corporate EFE Matrix. Instructions Step 1 Go to the http://www.michelinman.com/US/en/homepage.html website. Review the company’s most recent Annual Report. Step 2 Determine and review Michelin’s major geographic segments. Step 3 Conduct research to determine what you believe are the four major threats and the four major opportunities critical to strategic planning within Michelin’s geographic segments. Review the relevant Standard and Poor’s Industry Survey documents for each segment. Step 4 Develop divisional EFE Matrices for Michelin. Work within a team of students if your instructor so requests but you will need an EFE Matrix for each segment. Step 5 Prioritize the 20 threats and the 20 opportunities developed in the prior step so that corporate Michelin top executives can better develop a corporate EFE Matrix. Step 6 Let’s say Michelin has their operations segmented by domestic versus global. Based on your research, prepare an EFE Matrix for Michelin’s domestic operations and another EFE Matrix for Michelin’s global Operations. Let Europe be domestic and all other regions be global.

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In performing strategic management case analysis, you should find information about the company’s actual and planned strategies. Comparing what is planned versus what you recommend is an important part of case analysis. Do not recommend what the firm actually plans, unless in-depth analysis of the situation reveals those strategies to be the best among all feasible alternatives. This exercise gives you experience conducting library and Internet research to determine what Petronas plans to do in 2015–2017. Instructions Step 1 Go to the Petronas corporate website. Study the information provided there. Step 2 Prepare a three-page report titled “Strategies Being Pursued by Petronas in 2015–2017.

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Preemptive self-defense is a large component of the US’ security strategy. The US seeks to counter threats at the point of genesis rather than the point of commission. In the border context, the point of commission is the Port of Entry, which could be at the actual land/sea border or the functional equivalent of the border, such as an international airport located away from the actual border. Within US law enforcement, the DHS agencies, Customs and Border Protection (CBP) and Homeland Security Investigations (HSI), are uniquely empowered with border authority, which provides them more latitude to perform interviews and searches than the Fourth Amendment normally allows. Part of the CBP and HSI “door step” strategy is the deployment of personnel to overseas locales in order to employ preventative programs at the point of genesis.

The above assumes that international engagement is a prerequisite of border security, premised mostly on the movement of people and goods for the promotion of commerce. It seems that a decrease in the reliance on imports and exports—that is, a more isolationist, insular economic policy—would better enhance border security, by lowering the probability that contraband and malevolent actors could cross US borders. If this hypothesis is true, should economic freedom or security strategies dictate US policy?

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