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Father's Age Mother's Age 45 42 43 39 41 40QUARTER 3 WEEK 6 PERFORMANCE TASK # 4 Point and Confidence Interval Estimation of Parents' Age of My Groupmates Direction: Do the indicated tasks. 1. Interview your groupmates about the age of their mother and father. 2. Compute for the sample mean and sample standard deviation of the age of the parents of your groupmates. 3. Use confidence level of 95% in finding the point estimate, confidence interval estimate, and length of confidence interval estimation. Use the steps in the discussion part of this learners' packet. Rubrics Very Needs Category Excellent Satisfactory Satisfactory Improvement 100% of the 80-99% of the 60-79% of the Below 60% of Content- solutions are solutions are solutions are the solutions Accuracy (20) correct. (20) correct (17) correct (14) are correct (11) Output is Output is Output is exceptionally acceptably Output is Presentation attractive in attractive in terms attractive distractingly of Output of design, layout terms of design, layout and though it may messy and not (15) and neatness be a bit messy attractive (9) (15) neatness (13) 11 Complete Substantial Partial Limited Mathematical understanding of understanding understanding understanding Content the mathematical of the of the of the Reasoning concepts is mathematical mathematical mathematical (15 evident in the concepts is concepts is concepts is presentation. (15 applied. (13) applied. (11) applied. (9)