A machine is used to fill bottles with16 ounces of a liquid. The machine has a standard deviation of 0.2 ounces. A sample of 15 bottles is taken from a 500 bottle run and are tested for the amount of liquid in the bottle. The sample has a mean of 11.75 ounces in each bottle. 99% confidence level. what is the null hypothesis

The null hypothesis is  

Step-by-step explanation:

From the question we are told that

  The standard deviation is

   The sample size is  n =  15

    The population size is N = 500

     The sample mean is  

    The population mean is  

From the question we are told the confidence level is  95% , hence the level of significance is    

=>  

Generally the null hypothesis is  

70

step-by-step explanation:

2*5=10

4*15=60

60+10=

70

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