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The following table presents measurements of hard- ness (in durometers) for tire treads containing various percentages of reclaimed rubber.
a. Construct a scatterplot of hardness (y) versus percent reclaimed rubber (x).
b. Compute the least-squares line for predicting hardness from percent reclaimed rubber.
c. If two tires differ in the amount of reclaimed rubber by 15%, by how much would you predict their hardnesses to differ?
d. The table shows that a tire that had 30% reclaimed rubber had a hardness of 67.3. If another tire was manufactured with 30% reclaimed rubber, what would you predict its hardness to be?
e. For what percent reclaimed rubber would you predict a hardness of 65?
An engineer borrowed $3000 from the bank, payable in six equal end-of-year payments at 8%. The bank agreed to reduce the interest on the loan if interest rates declined in the United States before the loan was fully repaid.
Examine your Y data (excluding the hold out period) to determine if it needs to be differenced to make it stationary. Show a time series plot of the raw Y data and autocorrelation functions (ACFs).
1 . Based on the game, how did the simulation show the use of monetary policy to control both unemployment and inflation? How do Federal Funds Rate affect unemployment and inflation based on your experience with the game?
problem 1. perfect substitutes productionthe firms technology is such that one unit of output can be produced either
What economic principles can be applied to the event or issue and Identify and briefly describe a specific principle that we have covered in one or more of the modules.
should the club cover explicit and implicit costs? imagine that you are asked to consult with a drama club that puts on
Make up a chart listing a variety of prices per gallon of gasoline-$1.00, $1.25, $1.50, $1.75, $2.00, $2.25. Ask each stu- dent-and yourself-how many gallons per week they would purchase at each possible price.Then plot each student's demand curve...
question 1. suppose an economy in which there are two kinds of bonds.nbsp bond a pays a 10 nominal interest rate.nbsp
sullivans custom cabinets operate in a perfectly competitive market and employs labor and capital. labor costs 30 a
What exactly does Peter Houghtons memo say and Does the memo say that analysts should compromise their independence? How does the memo raise questions about analysts' independence?
You have enough land to grow one tree. The height of your tree (in feet) equals 100*(square root of age of the tree) ! The cost of cutting down the tree is $0. The interest rate is 4%, and the price of one foot of the tree is $16. a. What is your opt..
A tax on cigarette production….
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