Biology Forums - Study Force

Science-Related Homework Help Statistics and Probability Topic started by: Heybonita on Mar 5, 2023



Title: Exhibit 9-8The average gasoline price of one of the major oil companies in Europe has been $1.25 per ...
Post by: Heybonita on Mar 5, 2023

Exhibit 9-8
The average gasoline price of one of the major oil companies in Europe has been $1.25 per liter.  Recently, the company has undertaken several efficiency measures in order to reduce prices.  Management is interested in determining whether their efficiency measures have actually reduced prices.  A random sample of 49 of their gas stations is selected and the average price is determined to be $1.20 per liter.  Furthermore, assume that the standard deviation of the population () is $0.14.


Refer to Exhibit 9-8.  The standard error has a value of



0.14



7



2.5



0.02



Title: Re: Exhibit 9-8The average gasoline price of one of the major oil companies in Europe has been $1.25 per ...
Post by: silvermoon197 on Mar 5, 2023
Content hidden