Suppose You Wanted to Determine If You Should Reject the Null

question 50

Multiple Choice

Suppose you wanted to determine if you should reject the null hypothesis that running a playing fast tempo (as opposed to slow) music in your store has no effect on sales. On 65 randomly selected days with fast tempo music on the average store sales is $2,345 with a sample standard deviation of 45, while on 75 randomly selected days with slow tempo music on the average store sales is $2,555, with a sample standard deviation of 65. What would be the proper t-stat for this hypothesis test?

• A) \(\frac { 2345 - 2555 } { \sqrt { \frac { 45 ^ { 2 } } { 65 } + \frac { 65 ^ { 2 } } { 75 } } }\)
• B) \(\frac { 2345 } { \sqrt { \frac { 45 ^ { 2 } } { 65 } + \frac { 65 ^ { 2 } } { 75 } } }\)
• C) \(\frac { 2345 - 2555 } { \sqrt { \frac { 45 } { 65 } + \frac { 65 } { 75 } } }\)
• D) \(\frac { 2345 - 2555 } { \sqrt { 45 ^ { 2 } + 65 ^ { 2 } } }\)

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Definitions:

Undifferentiated

Undifferentiated refers to a market approach where a company offers the same marketing mix to all potential consumers without segmentation.

Account Segmentation

The process of dividing customer accounts into groups based on criteria like size, needs, or buying behavior to tailor marketing and sales efforts.

Customized

Tailored or modified to meet the specific needs or preferences of an individual customer or user.

Sales Territories

Designated geographic or market areas assigned to salespersons where they are responsible for conducting sales activities.