SOLVED:Two different foam expanding agents that can be used in the nozzles of fire-fighting spray equipment. A random sample of five observations with an aqueous film-forming foam (AFFF) had a sample mean of 4.7 and a standard deviation of 0.6 . A random sample of five observations with alcohol-type concentrates (ATC) had a sample mean of 6.9 and a standard deviation 0.8 . (a) Can you draw any conclusions about differences in mean foam expansion? Assume that both populations are well represented
SOLVED:Two different foam expanding agents that can be use…
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