Mathematics, 24.11.2020 02:20 tanafloe6264
State the conclusion based on the results of the test. The standard deviationstandard deviation inin the pressure required to open a certain valve is known to be sigma equals 1.3 psi.σ=1.3 psi. Due to changes in the manufacturing process, the quality-control manager feels that the pressurepressure variabilityvariability has changedchanged. The null hypothesis was rejected. Choose the correct answer below. A. There is not sufficient evidence that the mean of the pressure required to open a certain valve has not changed. B. There is sufficient evidence that the mean of the pressure required to open a certain valve has changed. C. The mean of the pressure has not changed. D. The mean of the pressure has changed. E. There is sufficient evidence that the mean of the pressure required to open a certain valve has not changed. F. There is not sufficient evidence that the mean of the pressure required to open a certain valve has changed.
Answers: 2
Mathematics, 21.06.2019 21:30, alegora78
He ! a group of farmers planned to clean 80 acres of wheat per day to finish the work on schedule. right before the work started, they received a new piece of machinery that them clean 10 more acres per day than originally planned. as a result of increased productivity in the last day before the deadline they only had to clean 30 acres. how many acres of wheat did the group of farmers have to clean?
Answers: 1
Mathematics, 21.06.2019 22:30, Kemosdasavage
Need same math paper but the back now i hope your able to read it cleary i need with hw
Answers: 1
Mathematics, 22.06.2019 01:00, mleighaj9560
38 points and brainliest plz answer question in word document
Answers: 1
State the conclusion based on the results of the test. The standard deviationstandard deviation inin...
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