A Carpet Company Advertises That It Will Deliver Your Carpet

question 124

Essay

A carpet company advertises that it will deliver your carpet within 15 days of purchase.A sample of 49 past customers is taken.The average delivery time in the sample was 16.2 days.The standard deviation of the population (σ) is known to be 5.6 days.
a.
State the null and alternative hypotheses for a test to determine if their advertisement is legitimate.
b.
Using the critical value approach, test the hypotheses.Let α = .05.
c.
Using the p-value approach, test the hypotheses at the 5% level of significance.

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Definitions:

Decision Rights

The duties that a particular individual in an organization is expected to perform.

Performance Evaluation

This involves assessing an employee's job performance using various criteria to determine the effectiveness and efficiency of their work.

Centralized Firms

Organizations that maintain decision-making authority at a central point, typically at the headquarters or the top management team.

Variable Costs

Expenses that fluctuate in direct proportion to changes in the level of production or service activity.