You are a product manager tasked with prioritizing features for a new SaaS product focused on project management.  You have a list of potential features, each with estimated development effort (in days) and an estimated customer value score (on a scale of 1-10, where 10 is highest).  Your goal is to create a prioritized list of features, justifying your choices based on a weighted scoring system that balances development effort and customer value.  The data is as follows:</p>
<p>**Feature** | **Customer Value (1-10)** | **Development Effort (Days)**<br />
&#8212;|&#8212;|&#8212;<br />
Task Management | 9 | 30<br />
Calendar Integration | 7 | 15<br />
Reporting and Analytics | 8 | 25<br />
Collaboration Tools | 10 | 45<br />
File Sharing | 6 | 10<br />
Notifications | 7 | 5<br />
Third-Party Integrations | 5 | 20<br />
User Roles and Permissions | 8 | 12<br />
Customizable Dashboards | 6 | 18<br />
Mobile App | 9 | 60</p>
<p>Using this data, create a prioritized list of features.  For each feature, provide:</p>
<p>1. **Weighted Score:** Calculated using a formula that considers both customer value and development effort (you decide on the weighting). Explain your chosen formula and rationale.<br />
2. **Justification:**  A concise explanation of why this feature is prioritized at this position, considering its value, effort, and potential impact on user adoption and satisfaction.<br />
3. **Prioritization Level:**  Assign each feature a prioritization level (e.g., High, Medium, Low). Justify your assignment.</p>
<p>Your final output should be a table summarizing the features, weighted scores, justifications, and prioritization levels.  The table should be sorted by weighted score in descending order.  The prioritization should consider both short-term and long-term goals, aiming for a balanced approach to maximize customer value and minimize development time.