Figure 154 Alt Text for Figure 15

question 43

Multiple Choice

Figure 15.4 Alt text for Figure 15.4: In figure 15.4, a graph illustrates the quantity of pounds traded against the exchange rate.
Long description for Figure 15.4: The x-axis is labelled, quantity of pounds traded in millions per day.The y-axis is labelled, exchange rate, Canadian dollar against the pound.A straight line supply curve, S, slopes up from the middle left to the top right corner.2 straight line demand curves, D1 and D2, have 2 slightly different slopes.Both curves slope down from the top left corner to the bottom right corner.Curve D2 is plotted to the left of curve D1.The difference between the curves is indicated by a left pointing arrow.Curve S intersects curves D1 and D2 at points A (500, 3.00) and B (300, 2.00) .Point (300, 4.00) is plotted near the top of curve D1, and point (100, 4.00) is plotted near the top of curve D2.All points are connected to their corresponding values on the x and y-axes with dotted lines.
-Refer to Figure 15.4.The equilibrium exchange rate is originally at A, $3/pound.Suppose the British government pegs its currency at $4/pound.Speculators expect that the value of the pound will drop and this shifts the demand curve for pounds to D₂.If the government abandons the peg, the equilibrium exchange rate would be

• A)more than $4/pound.
• B)$4/pound.
• C)$3/pound.
• D)$2/pound.
• E)less than $2/pound.

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Definitions:

Mean Difference

The average of differences between pairs of observations in a dataset.

Standard Deviation

A statistic that measures the dispersion of a dataset relative to its mean and is calculated as the square root of the variance.

Paired T-test

A statistical test used to compare the means of two related groups to determine if there is a significant difference between them.

Significance Level

The probability of rejecting the null hypothesis in a statistical test when it is actually true; a measure of the risk of a Type I error.