Suppose You Are Testing the Null Hypothesis That a Population

question 85

Multiple Choice

Suppose you are testing the null hypothesis that a population mean is less than or equal to 46,against the alternative hypothesis that the population mean is greater than 46.The sample size is 25 and alpha =.05.If the sample mean is 50 and the population standard deviation is 8,the observed z value is _______.

• A)2.5
• B)-2.5
• C)6.25
• D)-6.25
• E)12.5

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Definitions:

Capital Investment

Money expended by a business to purchase or improve tangible assets like land, factories, or machinery.

Investment Funds

These are pooled funds from various investors used to acquire securities and other investment assets, managed by financial professionals.

Present Value Index

An index computed by dividing the total present value of the net cash flow to be received from a proposed capital investment by the amount to be invested.

Competing Proposals

Proposals or bids from different entities aimed at securing a contract or project, often requiring evaluation to select the most advantageous.