Mathematics, 06.08.2019 19:10, 24mm05
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens are buried in soil for a 2-year period. the maximum penetration (in mils) for each specimen is then measured, yielding a sample average penetration of x = 52.7 and a sample standard deviation of s = 4.2. the conduits were manufactured with the specification that true average penetration be at most 50 mils. they will be used unless it can be demonstrated conclusively that the specification has not been met. what would you conclude? (use α = 0.05.) state the appropriate null and alternative hypotheses.
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Mathematics, 21.06.2019 15:00, FlayMaster101
Answer soon(fast) 15 pts-brainliest? for right answer with small explination a restaurant catered a party for 40 people. a child’s dinner (c) cost $11 and an adult’s dinner (a) cost $20. the total cost of the dinner was $728. how many children and adults were at the party? use the table to guess and check.(i couldn't get the graph onto the question) 8 children and 32 adults9 children and 31 adults10 children and 30 adults12 children and 28 adults
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Mathematics, 21.06.2019 19:00, heartykwarteng12
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Mathematics, 22.06.2019 01:30, snikergrace
What rule describes a dilation with a scale factor of 4 and the center of dilation at the origin?
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To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45...
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