FIND P VALUE A cable TV provider would ike to develop the abilily to predict the

Question

FIND P VALUE A cable TV provider would ike to develop the abilily to predict the monthly cable bill for a customer. A mutiple regression model was developed using a random sample of customers using the independent variables TV. People, and Years, with the results shown in the accompanying regression ouiput Complete parts a and b below Click the loon to view the regression output a. Test the significance of each independent variable using Test the significance of the variable TV. Determine the nul and altermative hypotheses a0.05. For b and P.letj 1 represent the variable TV, led j 2 represent the variable People, and let j 3 represent the variable Years Determine the test stalistic t 3.67 Round to two decimal places as needed) Determine the p-value, using a 0.05 Round to three decimal places as needed.) Enter your anawer in the answer box and then click Check Answer Clear All caps lock

Explanation / Answer

Question 1

For the given t test for significance of slope, we have

Test statistic = t = 3.67

Test is two tailed.

Level of significance = ? = 0.05

Sample size = n = 28 (from regression output, df = 27, so n = df + 1 = 27 + 1 = 28)

Degrees of freedom = n – 2 = 28 – 2 = 26

P-value = 0.0011

P-value = 0.001

(By using t-table/excel)

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