Mathematics, 02.10.2019 00:30 lovecats12
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 = 52.4 and a sample standard deviation of s = 4.7. 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 Ī± = 0.05.) state the appropriate null and alternative hypotheses.
Answers: 2
Mathematics, 21.06.2019 15:00
Abiologist is recording the loss of fish in a pond. he notes the number of fish, f, in the pond on june 1. on july 1 there were 63 fish in the pond, which is 52 fewer fish than were in the pond on june 1. which equation represents this situation? a. f ā 52 = 63 b. f ā 63 = 52 c. 63 ā f = 52 d. f ā 63 = ā52
Answers: 1
Mathematics, 21.06.2019 21:30
Ten members of balin's soccer team ran warm ups for practice. each member ran the same distance. their combined distance was 5/6 of a mile. to find the distance that each member ran, balin wrote the expression below.
Answers: 3
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45...
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