A Null and Alternative Hypothesis for a One Proportion Z

question 17

Multiple Choice

A null and alternative hypothesis for a one proportion z test are given as H₀: p = 0.8, H_a: p < 0.8. This hypothesis test is

• A)lower-tailed.
• B)upper-tailed.
• C)two-tailed.
• D)these hypotheses are incorrectly stated.

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Definitions:

Horizontal Axis

In graphing, the horizontal axis represents the independent variable and is typically labeled as the x-axis.

Estimated Line of Cost Behavior

A projection or estimation of how costs change in relation to changes in an organization’s level of activity.

High-Low Method

An accounting technique used to estimate variable and fixed costs associated with a business activity by analyzing the highest and lowest levels of activity.

Scatter Diagram

A graphical representation used to show the relationship between two variables, often used in statistics and quality control to identify potential correlations.