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Question;1 A health inspector at a restaurant will enter the kitchen;and choose 5 stations to inspect from a predetermined list of 15 stations;present in most restaurant kitchens. a. How many different sets of 5 stations;exist? b. If all sets are equally likely, what is the probability of each set? c. If the inspector were instead to randomly select 13 stations.to inspect;how many different sets of 13 stations would exist? d. If all sets were equally;likely, what is the probability of each set? 3.When the owner of a small;business reviews her list of contracts for 2011, she finds that 35% of the contracts;were from clients she met at a large conference at the end of 2010. Answer the;following questions about this situation A Was this measurement obtained by a;sample or a census? What words in the description of the situation make you;confident that your answer is correct? B. Should the owner have taken into;account some measure of reliability associated with the value 35%. 5. Since;careful records have begun being kept in January, Erics small business has;delivered the following quantities of flowers throughout town January February;March April May June July August Small Bouquets 85 34 26 24 43 29 30 19 Large;Bouquets 23 64 27 18 33 23 20 13 Assuming the data is normally distributed;construct two separate 90% confidence intervals one for the number of deliveries;of small bouquets in September and one for the number of large bouquets in;September. 6. If the vertical axis of a graph is unusually tall, how might that;misrepresent the data or mislead the viewer. 7. A quality control analyst;measures the number of hours a patient in a low-risk condition waits for car at;the emergency room of a small hospital. The following data are obtained for 20;patients. 2.26, 2.01, 3.0, 1.22, 1.92, 1.79, 0.78, 1.89, 0.71, 1.58 2.02, 2.77;2.87, 0.51, 0.74, 1.95, 2.76, 2.61, 3.54, 2.95 8. A quality control experiment;is to be done on a machine that fills tubes with toothpaste. Its specifications;require that it fill tubes with 4.7 oz. A random sample of 40 tubes filled by;machine is taken and each tube is weighed. The resulting data are below, with;the weight of the tube already having been subtracted from each. Perform a;hypothesis test at the 90% confidence level to determine if the machine is;performing according to specifications. 4.66, 4.61, 4.71, 4.63, 4.70, 4.62;4.63, 4.61, 4.70, 4.56 4.60, 4.66, 4.68, 4.57, 4.67, 4.72, 4.67, 4.64, 4.66;4.75 4.69, 4.64, 4.67, 4.65, 4.69, 4.65, 4.75, 4.53, 4.57, 4.74 4.68, 4.67;4.66, 4.68, 4.64, 4.65, 4.64, 4.80, 4.71, 4.69

 

Paper#62220 | Written in 18-Jul-2015

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