Figure 5-9 -Refer to Figure 5-9. Suppose This Demand Curve Is a Curve

question 263

Multiple Choice

Figure 5-9
-Refer to Figure 5-9. Suppose this demand curve is a straight, downward-sloping line all the way from the horizontal intercept to the vertical intercept. We choose two prices, P₁ and P₂, and the corresponding quantities demanded, Q₁ and Q₂, for the purpose of calculating the price elasticity of demand. Also suppose P₂ > P_1. In which of the following cases could we possibly find that (i) demand is elastic and (ii) an increase in price from P₁ to P₂ causes an increase in total revenue?

• A)0 < P₁ < P₂ < $10.
• B)$10 < P₁ < P₂ < $15.
• C)P₁ > $15.
• D)None of the above is correct.

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Definitions:

Relationship Between Variables

The relationship between variables refers to how changes in one variable are associated with changes in another through correlation or causation.

Significance Level

The significance level, often denoted by alpha (α), is the threshold chosen by the researcher to determine the statistical significance of an outcome; it's the probability of rejecting the null hypothesis when it is true.

Highly Significant

A term used in statistical analysis to denote results that vastly exceed the threshold for statistical significance, often suggesting a strong effect or association.

p < .001

p < .001 indicates that the probability of the observed data, or something more extreme, assuming the null hypothesis is true, is less than 0.1%, which is considered highly statistically significant.