A Researcher Selects a Sample of 36 Students from a School

question 27

Multiple Choice

A researcher selects a sample of 36 students from a school population with a mean IQ of 100 and a standard deviation of 12.She determines that the mean IQ in this sample is 104.Assuming she computes a one-sample z test at a .05 level of significance,what is the decision for a two-tailed test?

• A) Retain the null hypothesis; IQ scores in this sample are the same as those in the population.
• B) Reject the null hypothesis; IQ scores in this sample are significantly higher than those in the population.
• C) There is not enough information to make a decision.

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Definitions:

Hedging Transactions

Financial strategies used by companies to protect against potential losses caused by fluctuations in market prices, interest rates, or currency exchange rates.

Functional Currency

The primary currency of the primary economic environment in which an entity operates and carries out its transactions.

Exchange Rate Fluctuations

Variations in the value of one currency in relation to another, affecting the relative price of goods and services between countries and impacting international trade and investments.

Currency Hedge

A financial strategy used to minimize or manage the risks associated with changes in currency exchange rates affecting investments or transactions.