# Week 5 project assignment.docx - Week 5 project assignment...

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Week 5 project assignmentInstructor nameStudent nameDate
Case 11. The two possible data values are Private and Public in both business and engineering major.2. The success is private and failure is public.3. Proportion of success in business major is 16/20 or 0.8 and engineering major is 11/20 or 0.55.4. There are 20 numbers in both business major and engineering major.5. z sub alpha is Z0.05=1.645 for business major and engineering major6. The formula is 90% 90% CI = (^p±Z0.05^p(1^p)n)Business major: 0.8 ±1.645*√.8*.2/20 = 0.8 ±1.645*0.08944Engineering major: 0.55 ±1.645*√.55*.45/20 = 0.55 ±1.645*0.11124297. We have to subtract and add the values to get the two interval values. Business major: 90% CI = 0.8-0.147, 0.8+0.147 = 0.653 and 0.947Engineering major: 90% CI = 0.55-0.182, 0.55+0.182 = 0.368 and 0.7328. We are 90% confident that the private college of business major falls within 0.653 to 0.947and engineering major falls within 0.368 and 0.732.Case 21. Mean of Business major is 7.82% and Engineering major is 9.15%.