Answer:
The null hypothesis is  [tex]H_o : \mu = 16[/tex]
Step-by-step explanation:
From the question we are told that
 The standard deviation is [tex]\sigma = 0.2 \ ounce[/tex]
  The sample size is  n =  15
  The population size is N = 500
   The sample mean is  [tex]\= x = 11.75 \ ounce[/tex]
  The population mean is  [tex]\mu = 16\ ounce[/tex]
From the question we are told the confidence level is  95% , hence the level of significance is  Â
   [tex]\alpha = (100 - 95 ) \%[/tex]
=> Â [tex]\alpha = 0.05[/tex]
Generally the null hypothesis is  [tex]H_o : \mu = 16[/tex]
