Mathematics, 16.04.2020 20:23 Ashtree519
An article in Fire Technology investigated 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 4.5 and a standard deviation of 0.58. A random sample of five observations with alcohol-type concentrates (ATC) had a sample mean of 7.0 and a standard deviation 0.79. Construct the following: (a) A 90% two-sided confidence interval on sigma Subscript 1 Superscript 2 Baseline divided by sigma Subscript 2 Superscript 2 . (b) A 95% two-sided confidence interval on sigma Subscript 1 Superscript 2 Baseline divided by sigma Subscript 2 Superscript 2 . Comment on the comparison of the width of this interval with the width of the interval in part (a)
Answers: 2
Another question on Mathematics
Mathematics, 21.06.2019 15:00
Answer this question only if you know the answer! 30 points and
Answers: 1
Mathematics, 21.06.2019 22:20
Line segment eg is partitioned by point f in the ratio 1: 1. point e is at e (0, 4), and point f is at (1, 3). what are the coordinates of point g? (−1, 5) (2, 2) (3, 1) (4, 0)
Answers: 2
Mathematics, 21.06.2019 23:30
Find each value of the five-number summary for this set of data. [note: type your answers as numbers. do not round.] 150, 120, 136, 180, 158, 175, 124, 162 minimum maximum median upper quartile lower quartile
Answers: 1
Mathematics, 21.06.2019 23:30
In stepmber, daniel and justin opened a business. during their first three months of business, their average monthly profit was $51. if during their first month, they lost $29, and during their second month, they gained $115, what was their profit or loss for their third plzzz i will give you 299 points
Answers: 1
You know the right answer?
An article in Fire Technology investigated two different foam expanding agents that can be used in t...
Questions
Social Studies, 23.04.2020 00:48
History, 23.04.2020 00:48
Social Studies, 23.04.2020 00:48
Arts, 23.04.2020 00:48
Health, 23.04.2020 00:48
Chemistry, 23.04.2020 00:48
History, 23.04.2020 00:48
History, 23.04.2020 00:48
Mathematics, 23.04.2020 00:48
