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Before Any Order Is Shipped, Inspectors at Alvarez Manufacturing Test

question 134

Multiple Choice

Before any order is shipped, inspectors at Alvarez Manufacturing test a sample of finished units for breaking strength.You select a simple random sample of units from a recently completed order and find that the sample average breaking strength is 814 pounds.From the sample selected, you construct a 95% confidence interval estimate of the average breaking strength you could expect to find if all the units in the order were tested.The interval turns out to be 814 ± 7.5 lbs.How would you interpret your result?


Definitions:

Half-Lives

The time required for half of the atoms in a radioactive sample to decay into other elements or isotopes.

Half-Lives

The time required for a quantity to reduce to half its initial value, commonly used in the context of radioactive decay.

Half-Life

The time required for half of the atoms in a sample of a radioactive substance to undergo radioactive decay.

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