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Basic Econometrics 5th Edition by Damodar Gujarati,Dawn Porter
النسخة 5الرقم المعياري الدولي: 978-0073375779Basic Econometrics 5th Edition by Damodar Gujarati,Dawn Porter
النسخة 5الرقم المعياري الدولي: 978-0073375779 تمرين 3
Refer to the demand for cell phones regression given in Eq. (3.7.3).
a. Is the estimated intercept coefficient significant at the 5 percent level of significance What is the null hypothesis you are testing
b. Is the estimated slope coefficient significant at the 5 percent level What is the underlying null hypothesis
c. Establish a 95 percent confidence for the true slope coefficient.
d. What is the mean forecast value of cell phones demanded if the per capita income is $9,000 What is the 95 percent confidence interval for the forecast value
a. Is the estimated intercept coefficient significant at the 5 percent level of significance What is the null hypothesis you are testing
b. Is the estimated slope coefficient significant at the 5 percent level What is the underlying null hypothesis
c. Establish a 95 percent confidence for the true slope coefficient.
d. What is the mean forecast value of cell phones demanded if the per capita income is $9,000 What is the 95 percent confidence interval for the forecast value
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Table 3.1 gives data on the number of ce...
Basic Econometrics 5th Edition by Damodar Gujarati,Dawn Porter
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