A Manufacturer Wants to Increase the Absorption Capacity of a Sponge

question 65

Multiple Choice

A manufacturer wants to increase the absorption capacity of a sponge. Based on past data, the average sponge could absorb 3.5 ounces. After the redesign, the absorption amounts of a sample of sponges were (in ounces) : 4.1, 3.7, 3.3, 3.5, 3.8, 3.9, 3.6, 3.8, 4.0, and 3.9. What is the decision rule at the 0.01 level of significance to test if the new design increased the absorption amount of the sponge?

• A) Do not reject null hypothesis if computed t is less than 2.580
• B) Do not reject null hypothesis if computed t is less than 2.821
• C) Reject null hypothesis if computed z is 1.96 or larger
• D) Reject null hypothesis if computed t is less than 2.764

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Definitions:

Transportation Costs

Expenses associated with the movement of goods or services from one location to another, affecting supply chain and final pricing.

Opportunity Cost

The cost of forgoing the next best alternative when making a decision or choosing an option.

Produce Watches

the process or industry involved in manufacturing timepieces, requiring precision engineering and design-based skills.

Produce Cheese

The process of converting milk into cheese through various techniques that involve coagulation, curdling, and fermentation.