A Multiple-Comparison Procedure for Comparing Four Treatment Means Produced the Confidence

question 26

Multiple Choice

A multiple-comparison procedure for comparing four treatment means produced the confidence intervals shown below. For each pair of means, indicate which mean is larger or indicate that there
Is no significant difference. $$\begin{array} { l } \left( \mu _ { 1 } - \mu _ { 2 } \right) : ( 8,20 ) \\\left( \mu _ { 1 } - \mu _ { 3 } \right) : ( - 5,1 ) \\\left( \mu _ { 1 } - \mu _ { 4 } \right) : ( 12,18 ) \\\left( \mu _ { 2 } - \mu _ { 3 } \right) : ( - 22 , - 10 ) \\\left( \mu _ { 2 } - \mu _ { 4 } \right) : ( - 4,6 ) \\\left( \mu _ { 3 } - \mu _ { 4 } \right) : ( 12,22 ) \end{array}$$

• A) no significant difference between \(\mu _ { 1 }\) and \(\mu _ { 2 }\); no significant difference between \(\mu _ { 1 }\) and \(\mu _ { 3 }\); \(\mu _ { 1 } > \mu _ { 4 } ; \mu _ { 2 } < \mu _ { 3 } ;\) no significant difference between \(\mu _ { 2 }\) and \(\mu _ { 4 } ; \mu _ { 3 } > \mu _ { 4 }\)
• B) \(\mu _ { 1 } > \mu _ { 2 } ; \mu _ { 1 } < \mu _ { 3 } ; \mu _ { 1 } > \mu _ { 4 } ; \mu _ { 2 } < \mu _ { 3 } ; \mu _ { 2 } < \mu _ { 4 } ; \mu _ { 3 } > \mu _ { 4 }\)
• C) \(\mu _ { 1 } > \mu _ { 2 }\); no significant difference between \(\mu _ { 1 }\) and \(\mu _ { 3 } ; \mu _ { 1 } > \mu _ { 4 } ; \mu _ { 2 } < \mu _ { 3 } ;\) no significant difference between \(\mu _ { 2 }\) and \(\mu _ { 4 } ; \mu _ { 3 } > \mu _ { 4 }\)
• D) \(\mu _ { 1 } < \mu _ { 2 }\); no significant difference between \(\mu _ { 1 }\) and \(\mu _ { 3 } ; \mu _ { 1 } < \mu _ { 4 } ; \mu _ { 2 } > \mu _ { 3 }\); no significant difference between \(\mu _ { 2 }\) and \(\mu _ { 4 } ; \mu _ { 3 } < \mu _ { 4 }\)

Identify various sales promotion tools and understand their role in marketing strategies.

Distinguish between different promotional elements such as personal selling, advertising, public relations, and direct marketing.

Assess the strengths and weaknesses associated with sales promotions and direct marketing.

Understand how promotions can be customized to match the specific needs of target markets.

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Definitions:

Personal Income Tax

A tax levied on individuals or households based on the income they receive from work, investments, or other sources.