Completed quickly and followed instructions given. Grammar, spelling, etc. was all good as well. Thank you so much! Will hire in the future.
1. Use the data below to answer the following questions.
a. Draw a scatter plot of X on Y
b. Calculate the sample estimates of β0 and β1
Estimated regression equation:______________________
c. Draw the estimated regression of part (b) on part (a)’s graph
d. Interpret the estimates of β0 and β1
e. Find the predicted value when X=5
f. Estimate and interpret the coefficient of determination R2
2. Creating your own data. Open a Stata do file then copy and execute the following code:
set obs 100
gen x = rnormal()
gen u = rnormal()
keep if x>0
gen y = 10+15*x + 5*u
reg y x
twoway (scatter y x) (lfit y x)
a. Paste the Stata output here (main window):
b. Paste the graph here:
c. Look closely and the data and the output and explain briefly what each line of code does.
i. set obs 100
ii. gen x = rnormal()
iii. gen u = rnormal()
iv. keep if x>0
v. gen y = 10+15*x + 5*u
vi. reg y x
vii. twoway (scatter y x) (lfit y x)
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