Alocal brewery distributes beer in bottles labeled 12 ounces. a government agency thinks that the brewery is cheating its customers. the agency select 20 of these bottles, measures their contents, and obtains a sample mean of 11.7 ounces with a standard deviation of 0.70 ounce. assume the distribution is normally distributed. test the agency�s claim that the brewery is cheating its customers
a. use the critical value t0 method from the normal distribution to test for the population mean -symbol is a mean. test the agency�s claim at the level of significance -symbol is significance of alpha = 0.05.
1. h0 :
ha :
2.  = significance of alpha symbol
3. test statistics:
4. p-value or critical z0 or t0.
5. rejection region:
6. decision:

7. interpretation:
b. use the critical value t0 method from the normal distribution to test for the population mean -symbol is a mean. test the agency�s claim at the level of significance -symbol is signficance of alpha = 0.01
1. h0 :
ha :
2. -symbol is a significance of alpha = 0
3. test statistics:
4. p-value or critical z0 or t0.
5. rejection region:
6. decision:
7. interpretation: