Mathematics, 17.10.2019 19:00, KennyOaks6230
Suppose the mean salary for full professors in the united states is believed to be $61,650. a sample of 36 full professors revealed a mean salary of $69,800. assuming the standard deviation is $5,000, can it be concluded that the average salary has changed or is it still the same. (using a 0.05 level of significance)? (this mean you should perform a hypothesis testing h^0: μ_y^0=$61.650) ( provide 2 approached both the "t-test" and "p-value" approach. ) create the 95 % confidence interval for the population mean using the information above?
Answers: 2
Mathematics, 21.06.2019 19:30, amatulli
Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .
Answers: 1
Mathematics, 21.06.2019 23:30, jtroutt74
Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.
Answers: 1
Mathematics, 22.06.2019 08:10, bridgetosanders
Which of the expressions is equal to -3x2-12 -6i)(x+2i) -4i)(x-3i) +2i)(x-6i) +6i)(x-2i
Answers: 1
Suppose the mean salary for full professors in the united states is believed to be $61,650. a sample...
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