Mathematics, 17.03.2020 03:11 erichenkell2700
An article in Fire Technology describes the investigation of two different foam expanding agents that can be used in the nozzles of firefighting spray equipment. A random sample of five observations with an aqueous film-forming foam (AFFF) had a sample mean of 4.340 and a standard deviation of 0.508. A random sample of five observations with alcohol-type concentrates (ATC) had a sample mean of 7.091 and a standard deviation of 0.430. Assume that both populations are well represented by normal distributions with the same standard deviations. (a) Is there evidence to support the claim that there is no difference in mean foam expansion of these two agents? Use a fixed-level test with α=0.10. (b) Calculate the P-value for this test. (c) Construct a 90% CI for the difference in mean foam expansion. Explain how this interval confirms your finding in part (a).
Answers: 3
Mathematics, 22.06.2019 00:00, salgadoj6933
Cody ran nine miles on his first day of training. the next day he ran 1/8 that distance. how far did he run the second day?
Answers: 2
Mathematics, 22.06.2019 04:10, elpeke102p73fz3
Find the tenth term in the following geometric sequence. 8, 4, 2, 1, . .a) 13b) 0.0078c) 0.0156d) 12.5
Answers: 2
Mathematics, 22.06.2019 05:30, Piglets1228
Given: df and de are midsegments of abc prove: de=1/2 ac
Answers: 1
An article in Fire Technology describes the investigation of two different foam expanding agents tha...
Social Studies, 02.02.2020 21:53
Mathematics, 02.02.2020 21:53
English, 02.02.2020 21:53
Mathematics, 02.02.2020 21:53
History, 02.02.2020 21:53
Mathematics, 02.02.2020 21:53