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tomato plants were grown in a greenhouse under treatment conditions conshysisting of combinations of three soil types
1 calculate the residuals from the least-squares fitted model for the ph meashy surement data set phmeas txt and plot
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