Mathematics, 06.12.2019 04:31, Adeenieweenie
Amanufacturer produces crankshafts for an automobile engine. the wear of the crankshaft after 100,000 miles (0.0001 inch) is of interest because it is likely to have an impact on warranty claims. a random sample of n = 15 shafts is tested and x - = 2.78. it is known that sigma = 0.9 and that wear is normally distributed. a. test h0: mu = 3 versus ? 1: mu 3 using alpha = 0.05. b. what is the power of this test if mu, = 3.25? c. what sample size would be required to detect a true mean of 3.75 if we wanted the power to be at least 0.9?
Answers: 3
Mathematics, 22.06.2019 03:30, bullockarwen
If the regular price was $115, how much did jeanine pay for the hiking boots? jeanine bought a new pair of hiking boots on sale for 25% off the regular price. enter the correct answer. ooo done clestall the following formula describes this scenario: đoo s = r. 0.25 r = regular price s = sale price
Answers: 1
Mathematics, 22.06.2019 04:40, sweetycakes6994
Experimental versus theoretical probability. someone me
Answers: 1
Amanufacturer produces crankshafts for an automobile engine. the wear of the crankshaft after 100,00...
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