Are female pelvises wider than male pelvises?

Are female pelvises wider than male pelvises? 

Write up the results of your investigation. Your report should include the following sections: 1. Background. In your project report, try to follow the outline of the scientific method. Start with a short description of the observation and question. 2. Hypothesis. Generate a testable hypothesis (following the guidelines for hypotheses that we discussed on the first day of class), and present that hypothesis at the start of your report. 3. Methods. Describe what data you gathered and anything else you think might help your reader to understand how you got your data. 4. Results. Summarize the results of the data. 5. Discussion. Use the next section to summarize what the results mean and whether they support or reject your hypothesis. This is the section for interpretation. 6. Reflection. This section should be a short paragraph where you think about the validity of your results.