Introduction:
Analyzing the effectiveness of a company's marketing strategy is crucial to determine its success in achieving its goals and objectives. In a case study, there are several effective ways to evaluate and assess the effectiveness of a company's marketing strategy.

1. Set Clear Objectives:
- Begin by identifying the objectives of the marketing strategy outlined in the case study.
- Assess whether these objectives are specific, measurable, achievable, relevant, and time-bound (SMART).

2. Analyze Target Market:
- Understand the target market segment the company is focusing on.
- Evaluate the company's understanding of customer needs, preferences, and behavior.
- Assess if the marketing strategy effectively targets and engages the identified market segment.

3. Evaluate Marketing Mix:
- Analyze the company's product or service offering and its unique selling proposition (USP).
- Assess the pricing strategy and its alignment with the target market segment.
- Evaluate the promotional activities and channels used to reach the customers.
- Review the distribution strategy and assess its effectiveness in making the product available to the customers.

4. Assess Customer Perception:
- Analyze customer perception of the company's brand and its reputation.
- Evaluate customer satisfaction levels and loyalty towards the brand.
- Assess if the marketing strategy effectively communicates and enhances the brand image.

5. Measure Key Performance Indicators (KPIs):
- Identify relevant KPIs such as sales revenue, market share, customer acquisition, customer retention, website traffic, social media engagement, etc.
- Compare the actual performance against the targets set in the marketing strategy.
- Analyze the trends and patterns in the KPIs to assess the effectiveness of the marketing strategy.

6. Study Competitors:
- Evaluate the competitive landscape and analyze the marketing strategies of key competitors.
- Compare the company's marketing strategy with those of its competitors.
- Assess the company's competitive advantage and positioning in the market.

7. Customer Feedback:
- Analyze customer feedback through surveys, interviews, social media comments, and online reviews.
- Evaluate the sentiment and perception of customers towards the company's marketing efforts.
- Identify areas where improvements can be made based on customer feedback.

8. Financial Analysis:
- Assess the financial performance of the company and its marketing efforts.
- Analyze the return on investment (ROI) of the marketing activities.
- Evaluate the cost-effectiveness of the marketing strategy in generating revenue.

Conclusion:
By following these effective ways, one can thoroughly analyze the effectiveness of a company's marketing strategy in a case study. This analysis will provide insights into the strengths and weaknesses of the strategy, helping the company make informed decisions and optimize its marketing efforts for better results.