A customer believes that the price (per liter) of gasoline is increasing. Based on previous refuelings, it is known that the average price per liter is 5$ with a standard deviation of 3/2 $. A survey conducted on the current days at 49 gas stations revealed an average price of 5.35$. Test the hypothesis presented by this customer. Consider a significance level of 5%.

A customer believes that the price (per liter) of gasoline is increasing. Based on previous refuelings, it is known that the average price per liter is 5$ with a standard deviation of 3/2 $. A survey conducted on the current days at 49 gas stations revealed an average price of 5.35$. Test the hypothesis presented by this customer. Consider a significance level of 5%.

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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