Research suggests that macroeconomic factors can explain the dynamics of interest rates (i) in the economy. Suppose we are interested in understanding whether inflation (1) plays a role in explaining interest rates. The following levels of interest rate and inflation were recorded during two years 2010 2020 Inflation 3% 7% If we wish to use a linear model for explaining interest rates, such that i= a + bxπ The values for a and b would be a) a = -0.0125 and b = 0.75 b) a = -0.03 and b = 1.33 c) a 0.01 and b = 0.03 d) a = 0.0005 and b = -0.25 Interest Rates 1% 4%

enlearning.com/assessment/showtest php?begin ohm assessment-1 Rukayat Balogun User Settings My Classes Log o ger Forums Calendar Gradebook all 2018 > Assessment g Equations of Lines Due Fri 12/21/2018 10:00 am The population of a suburb of Phoenix has shown a linear growth in the years 1994-2006. The population in 1994 was 45980 people and it has been growing at a rate of 790 people per year A) Write a linear equation expressin Answer: g the population of the town, P, as a function of t, the number of years since 1994. Preview B) If the to wn is still expeencing a linear increase, what will the population be in 2008? Points possible: 1 Unlimited attenpts. Messags9 Submit 1:34 PM DRLL 2

the table shows the percent of households with internet access for selected years from 2009 and projected through 2015. Year Percent of households 2009 67 2010 70 2011 72.5 2012 75 2013 76.5 2014 77.2 2015 78 Use the model to predict the percent of households with internet access in 2022.

If actual period demand varies from the forecast by more than 3MAD, this indicates: there is 3% chance that the forecast is wrong. there is a 98% chance that the forecast is wrong. there is a 97% chance that the forecast is wrong. there is a 3% chance that the forecast is correct Moving to the next question prevents changes to this answer: