Simple Regression Assignment 1. Data were collected to explain the satisfaction

Question

Simple Regression Assignment

1. Data were collected to explain the satisfaction rating a caller gives a customer representative based on the amount of time the caller is on hold (hold time is expressed in minutes)

Regression Statistics:

Multiple R =

R Square =

Adjusted R Square = 0.661

Standard Error =

Observations = 10

ANOVA

                     

Based on the regression results, fill in the tables and answer the following questions. Show work!

a) What is the estimated regression equation?

b) What percentage of the variation in the rating is explained by hold time?

c) What is the standard error of the error term in the regression equation?

d) Is the variable “hold time” significant at the 10% level of significance? How do you know?

e) What is the predicted rating if a caller is on hold for 10 minutes?

f) What is the effect on rating of increasing the hold time by 1minute?

g) What is the 95% confidence interval for the coefficient of hold time?

df SS MS F Significance F Regression 58.7 0.0026 Residual 25.3 not needed not needed Total not needed not needed not needed

Explanation / Answer

Simple Regression Assignment 1. Data were collected to explain the satisfaction

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