Suppose You Wanted to Determine If You Should Reject the Null

question 21

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 decreases sales by $100 on average. 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) \(\frac { 2345 - 2555 - 100 } { \sqrt { \frac { 45 ^ { 2 } } { 65 } + \frac { 65 ^ { 2 } } { 75 } } }\)
• C) \(\frac { 2345 - 2555 + 100 } { \sqrt { \frac { 45 ^ { 2 } } { 65 } + \frac { 65 ^ { 2 } } { 75 } } }\)
• D) \(\frac { 2345 - 2555 } { \sqrt { 45 ^ { 2 } + 65 ^ { 2 } } }\)

Comprehend the responsibilities and performance evaluation metrics of profit center managers.

Learn about the role of responsibility accounting in management and its impact on different levels of an organization.

Identify direct and indirect expenses in a department store setting.

Understand the distinction between cost centers, profit centers, and investment centers in an organizational context.

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Definitions:

Intrapreneur

An employee within a company who is given the freedom and financial support to create new products, services, systems, or businesses, acting as an entrepreneur within the organization.

Venture Capitalist

An investor who provides capital to startup companies and small businesses with perceived long-term growth potential.

Diversify

The strategy of allocating investments or resources across various assets, industries, or sectors to reduce risk and enhance potential returns.

Tolerance For Failure

The willingness or capacity of an individual or organization to endure the negative effects of failures in pursuit of success.