Answer:
The null hypothesis [tex]H_o : \mu = 31[/tex]
The alternative hypothesis [tex]H_a : \mu > 31[/tex]
Step-by-step explanation:
From the question we are told that
The population mean is [tex]\mu = 31 \ miles / gallon[/tex]
Generally
The null hypothesis is that the company's new sedan, the Libra, will have an average of [tex]\mu = 31 \ miles / gallon[/tex]
This mathematically represented as
The null hypothesis [tex]H_o : \mu = 31[/tex]
The alternative hypothesis is that the company's new sedan, the Libra, will have an average better than [tex]\mu = 31 \ miles / gallon[/tex]
This mathematically represented as
The alternative hypothesis [tex]H_a : \mu > 31[/tex]
