Mathematics, 19.12.2019 05:31, jpsaad00
Astatistical program is recommended. a spectrophotometer used for measuring co concentration [ppm (parts per million) by volume] is checked for accuracy by taking readings on a manufactured gas (called span gas) in which the co concentration is very precisely controlled at 69 ppm. if the readings suggest that the spectrophotometer is not working properly, it will have to be recalibrated. assume that if it is properly calibrated, measured concentration for span gas samples is normally distributed. on the basis of the six readings—77, 82, 72, 68, 69, and 85—is recalibration necessary? carry out a test of the relevant hypotheses using α = 0.05. state the appropriate null and alternative hypotheses.
Answers: 3
Mathematics, 21.06.2019 18:00, joshuahagerman1404
In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.
Answers: 3
Mathematics, 21.06.2019 20:00, mechelllcross
Which expression is rational? 6. , square root two, square root 14, square root 49
Answers: 1
Mathematics, 21.06.2019 21:50, shay68596
What is the next step in the given proof? choose the most logical approach. a. statement: m 1 + m 2 + 2(m 3) = 180° reason: angle addition b. statement: m 1 + m 3 = m 2 + m 3 reason: transitive property of equality c. statement: m 1 = m 2 reason: subtraction property of equality d. statement: m 1 + m 2 = m 2 + m 3 reason: substitution property of equality e. statement: 2(m 1) = m 2 + m 3 reason: substitution property of equality
Answers: 3
Astatistical program is recommended. a spectrophotometer used for measuring co concentration [ppm (p...
Mathematics, 20.09.2020 03:01
Physics, 20.09.2020 03:01
Mathematics, 20.09.2020 03:01
English, 20.09.2020 03:01
English, 20.09.2020 03:01
Computers and Technology, 20.09.2020 03:01
Mathematics, 20.09.2020 03:01