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Q17 A health food store started selling herbal pills that claim to result in weight loss without changing eating habits. You decide to check the claim as your data management project. Explain how you can carry out a reliable experiment to collect data. Q18 Collect data on the occurrence of each digit 0 to 9 on car license plates in your area. Record at least 100 digits. Display the results in a suitable format. How did you select your sample? (Describe the technique and method) Describe this data set. Do any digits seem to occur more or less often than others? How do you explain this? How can you check whether this is a real result? 019 The table shows data on accidents and fatalities among motorcyclists for a jurisdiction, with and without the use of a helmet. Display the data from the point of View of someonetrying to have a mandatory helmet law repealed, and from the point of View of someone promoting the use of helmets. Helmet Use Percent {\"16} Number of Accidents Number of Facilities yes 75 9375 1 406 no 25 3125 1111 Q14 ' Ten scuba divers go on the same dive. The table shows the body mass data and how long each diver stays down before reaching minimum air supply. Determine whether there is a relationship between body mass and air time. Body Mass {kg} Air 'I'Ime [min] 72 70 82 64 87 62 93 52 86 ()1 91 58 96 54 93 55 80 65 75 73 Q1 5 The staff at a small hospital consists of 5 doctors, 24 nurses, 12 technicians, and 15 maintenance workers. A committee of 10 is needed to create a plan for renovations. How many of each category should be on the committee? Q16 A common belief is that cars assembled on a Monday or a Friday are more likely to have defects than cars assembled in the middle of the week. Outline a possible plan for sampling the output of a car factory to test this hypothesis