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fifty-five patients participated in the study of a new blood test for a particular disease their gender age duration
a chemist is working on a new coating for transparencies used in ink-jet printers the current formulation causes the
in 2002 colorado experienced a drought and many towns on the front range issued either mandatory or voluntary water
an experiment was performed to explore the effect of a marketing campaign on web site traffic the data in webtraff
7 the data set epoxy txt contains data from an experiment to determine the effect of the level of epoxy in an
1 longwave lw and shortwave sw are two appearance measures used in the automotive industry to rate the quality of a
time and temperature are key properties in many chemical curing processes process engineers are often concerned with
a manufacturer of cheese has a number of production facilities across the country one product that is produced is used
1 consider the following data on the diameter of ball bearings from a particular production line118nbspnbsp 142nbspnbsp
a major automotive paint manufacturer has a panel farm on the coast of florida the purpose of this farm is to expose
a second experiment on the lens coating discussed in problem 1 was run to study the effects of both the ph level and
the data set labcomp txt is the result of an inter-lab study where multiple labs in this case each located at a
the data set saf ety txt contains the number of recorded safety violations at a companyamp39s six plants over a 5-year
a large industrial corporation produces among other things balls used in computer mice these plastic balls have a
1 calculate the sample mean and standard deviation for the time to reach -10degc for the repair test panels discussed
1 for the data in webvisit txt calculate the sample median and interquartile range and make a box plot2 for the
the data set vitamin txt contains the results of a study on vitamins three groups of test subjects each received a
in the development of coatings such as for paper optical lenses computer screens etc a researcher will often study a
the data set odor txt contains three responses gathered from a factorial design described in chapter 9 the purpose of
the ratings discussed in problem 3 were constructed because the company felt that the moisture levels in the raw
the data set absorb txt contains data from a silica processing plant one key quality parameter for silica is the
the data set drums txt contains weights that were made on 30 drums of a chemical product weights were taken before the
a company was developing a new vitamin for those at risk from ailments associated with low calcium levels in order to
the data set ph txt contains measurements from three batches of material that were made at a chemical plant for each
1 construct a histogram for the data from example 212 p 7 using a difshy ferent class width than was used in the