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Chapter 7 Project In a study of Americans from a variety of professions were asked if they considered themselves left-handed, right-handed, or ambidextrous. The results

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Chapter 7 Project In a study of Americans from a variety of professions were asked if they considered themselves left-handed, right-handed, or ambidextrous. The results are given below: Profession Right Left Ambidextrous Total Psychiatrist 101 10 7 118 Architect 115 26 7 148 Orthopedic Surgeon 121 5 6 132 Lawyer 83 16 6 105 Dentist 116 10 6 132 Total 536 67 32 635 1. Test for an association between handedness and career for these five professions. Note: Ambidextrous is considered a type of handedness so you should use all 5 rows and 3 columns for this work. What do you conclude at the 5% significance level? What do you conclude at the 1% confidence level? Make sure you show all the steps. 2. Can we conclude, at the 5% significance level, that left-handedness is equally distributed among the five professions? Make sure you show all the steps.Chapter 8 Project Most restaurant patrons leave a tip between 15% and 20% of the bill, and some restaurant customers determine the percent tip to leave based on the quality of service. Summary statistics for mean tip percent left between the three sewers at the First Cmsh Bistro in Northern New York coded A, B, and C are given in the table below. Is there a difference in mean tip percentage between the three servers? Be sure to show all steps of the appropriate test. Server Sample Size Mean Standard Deviation A 60 17,543 5.504 B 65 16.017 3.465 C 32 16.109 3.379 Total 157 16.619 4.336

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