TABLE 9-3 A Drug Company Is Considering Marketing a New Local Anesthetic

question 162

Short Answer

TABLE 9-3
A drug company is considering marketing a new local anesthetic. The effective time of the anesthetic the drug company is currently producing has a normal distribution with a mean of 7.4 minutes with a standard deviation of 1.2 minutes. The chemistry of the new anesthetic is such that the effective time should be normally distributed with the same standard deviation. The company will market the new local anesthetic as being better if there is evidence that the population mean effective time is greater than the 7.4 minutes of the current local anesthetic.
-Referring to Table 9-3, if you select a sample of 25 new local anesthetics and are willing to have a level of significance of 0.1, the confidence coefficient of the test is ________ if the population mean effective time is 8 minutes.

---

Definitions:

Positive Economic Profits

The situation in which a firm's total revenues exceed its total costs, including both explicit and implicit costs, signaling that the firm is doing better than the next best alternative.

Profit

The financial gain realized when the amount earned from a business activity exceeds the expenses, costs, and taxes needed to sustain the activity.

Monopolistically Competitive Firm

A company that operates in a market with many competitors, each offering products that are similar but not identical, allowing for some degree of market power.

Price Higher Than Marginal Cost

A situation where the selling price of a product is set above the marginal cost of production, often leading to increased profitability but potentially distorting market efficiency.