Mathematics, 23.03.2020 19:07 lakenyahar
Many older homes have electrical systems that use fuses rather than circuit breakers. A manufacturer of 40-amp fuses wants to make sure that the mean amperage at which its fuses burn out is in fact 40. If the mean amperage is lower than 40, customers will complain because the fuses require replacement too often. If the mean amperage is higher than 40, the manufacturer might be liable for damage to an electrical system due to fuse malfunction. To verify the amperage of the fuses, a sample of fuses is to be selected and inspected.
(a) If a hypothesis test were to be performed on the resulting data, what null and alternative hypotheses would be of interest to the manufacturer?
Answers: 1
Mathematics, 21.06.2019 19:30
00 points ! missyβs rotation maps point k(17, β12) to kβ(12, 17). which describes the rotation? 270Β° counterclockwise rotation 90Β° counterclockwise rotation 90Β° clockwise rotation 180Β° rotation
Answers: 1
Mathematics, 21.06.2019 22:30
James wants to promote his band on the internet. site a offers website hosting for $4.95 per month with a $49.95 startup fee. site b offers website hosting for $9.95 per month with no startup fee. for how many months would james need to keep the website for site a to be a better choice than site b?
Answers: 1
Mathematics, 21.06.2019 23:00
Unaware that 35% of the 10000 voters in his constituency support him, a politician decides to estimate his political strength. a sample of 200 voters shows that 40% support him. a. what is the population? b. what is the parameter of interest? state its value c. what is the statistics of the interest? state its value d. compare your answers in (b) and (c) is it surprising they are different? if the politician were to sample another 200 voters, which of the two numbers would most likely change? explain
Answers: 2
Many older homes have electrical systems that use fuses rather than circuit breakers. A manufacturer...
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