If the Population Variances Are Assumed to Be Known in an Application

question 65

Multiple Choice

If the population variances are assumed to be known in an application where a manager wishes to estimate the difference between two population means,the 95 percent confidence interval estimate can be developed using which of the following critical values?

• A)z = 1.645
• B)z = 1.96
• C)t value that depends on the sample sizes from the two populations
• D)z = 2.575

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Parenteral

Referring to the delivery of substances into the body through any means other than the digestive tract, most commonly by injection.

Intradermal

Referring to an injection or administration of substances within the layers of the skin.

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