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Company’s performance

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Company’s performance

Published by Brilliant Ravens

A leading research firm interviewed with Starbuck Café top management to inquire about the restaurant’s success. The performance of Starbuck Café was based on the management commitment, effective training of their crews and stakeholder pressure. The research firm has collected data from 300 Starbuck Café employees in Al Ain, Abu Dhabi and Dubai.

  1. a) The table below summarizes the results of one of the bivariate techniques used in this study:

 

Table 3: Correlation Analysis  
  Starbuck Performance Management Commitment Effective Training Stakeholder Pressure
Starbuck Performance 1.00      
Management Commitment 0.64 1.00    
Effective Training -0.82 0.03 1.00  
Stakeholder Pressure 0.78 0.01 0.40 1.00

 

Comment on the significant correlation and which variable appear to be related to each other?

 

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  1. b) ANOVA was used to assess whether any differences in the three branches of Starbuck Café:

 

Table 4: ANOVA: Single Factor                                                                                                                                   (Alpha 0.05)
Groups Count Sum Average Variance
Al Ain 100 175.9 3.51 0.23
Abu Dhabi 100 179.6 3.59 0.15
Dubai 100 174.9 3.49 0.20
 
ANOVA
Source of Variation SS df MS F P-value F crit
Between Groups 0.25 2 0.125 7.449 0.009 3.05
Within Groups 40.97 147 0.278
Total 41.22 149

 

State the hypothesis, and interpret the results of the test?

1) Null Hypothesis

________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________2) Alternate Hypothesis

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3) Result

________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________4) Interpretation

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  1. c) Why have the researchers not used t-test for the test above?

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To test the influence of the three independent variables, multiple linear regression was conducted:

Table 5: Multiple Linear Regression                                                                                                                                                         (Alpha = 0.05)
Regression Statistics
Multiple R 0.77
R Square 0.55
Adjusted R Square 0.73        
Observations 150.00
ANOVA
  df SS MS F Significance F
Regression 2 1.87 0.92 4.23 0.004
Residual 147 39.3 0.26
Total 149 41.2
  Coefficients Standard Error t Stat P-value
Intercept 4.75 9.19 8.58 0.0002
Management Commitment 3.28 2.77 1.16 0.0210
Effective Training 2.45 3.50 0.17 0.0010
Stakeholder Pressure -1.47 4.54 -0.36 0.1303

 

  1. d) Use Table 3 to develop and interpret the regression equation                                                                                  

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  1. e) Comment on the quality of the model

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