Suppose You Are Testing the Null Hypothesis That a Population $\alpha$

question 82

Multiple Choice

Suppose you are testing the null hypothesis that a population mean is greater than or equal to 60, against the alternative hypothesis that the population mean is less than 60.The sample size is 64 and $\alpha$ = .05.If the sample mean is 58 and the population standard deviation is 16, the observed z value is _______.

• A)-1
• B)1
• C)-8
• D)8
• E)58

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Definitions:

Recognition Of Variances

The process of identifying and documenting the differences between actual and budgeted costs.

Flexible Budgets

Budgets that adjust or flex with variations in activity levels or other relevant factors, allowing more accurate comparisons to actual results.

Cost Driver

A factor, such as machine-hours, beds occupied, computer time, or flight-hours, that causes overhead costs.

Fixed Costs

Costs that do not change with the level of production or sales, such as rent or salaries.