Engineering, 05.04.2021 23:40, Nigward666
Residents of the town of Alternateville have recently complained of inconsistent shipping charges at their local Post Office. They believe the scales at the Post Office are "too inconsistent", translating to unfair charges. The weight of a parcel is measured using an electronic scale that reports the true weight plus a random fluctuation (i. e., noise) which is normally distributed with a mean of zero, and independent of parcel weight. The company that manufactures the electronic scale claims that the standard deviation of the fluctuation is 2 grams and that this fluctuation "meets the industry standard". To test the manufacturer's claim, town officials measure the weight of the same package 4 times, recording the following weights (in grams):.
101.6, 97.2, 96.3, and 103.2. 7.
(a) At the α = 5% level, is there sufficient evidence to support the residents' claim?
(a) If the officials continue their investigation, estimate the result of the next weighting of the same package with 90% confidence.
Answers: 3
Engineering, 04.07.2019 18:10, genyjoannerubiera
Assuming compressible flow of air and that the measurements are done at flagstaff a pitot static tube that gives the difference of total and static pressure measures 0.35 m of mercury. what is the velocity of air? assume the temperature to be 300k. (submit your excel or matlab calculation sheet)
Answers: 1
Engineering, 04.07.2019 19:10, moneyyfletcher
The air in an automobile tire with a volume of 0.015 m3 is at 32°c and 140 kpa gage. determine the amount of air that must be added to raise the pressure to the recommended value of 206 kpa gage. assume the atmospheric pressure to be 128 kpa and the temperature and the volume to remain constant.[r-0.287 kj/kgk]
Answers: 3
Residents of the town of Alternateville have recently complained of inconsistent shipping charges at...
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