Answers: 1
Mathematics, 21.06.2019 19:40
Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.
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Mathematics, 21.06.2019 21:00
You buy five cds at a sale for $5.95 each. write an expression for the total cost of the cds.then use the distributive property and mental math to evaluate the expression.
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Mathematics, 21.06.2019 22:30
The pair of coordinates that do not represent the point( 5,150β) is a. (5,-210) b. (5,210) c. (-5,330) d. (-5,-30)
Answers: 1
Mathematics, 21.06.2019 23:00
Graph the system of equations on your graph paper to answer the question. {y=βx+4y=xβ2 what is the solution for the system of equations? enter your answer in the boxes.
Answers: 1
Graph the function by using a table...
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