Consider the following hypotheses: H0​:μ<192HA​=μ<192​ A sample of 78 observations results in a sample mean of 182 . The population standard deviation is known to be 20 . (You may find it useful to reference the oppropriate table: z table or ttable) 0-1. Calculate the value of the test statistic. (Negotive value should be indicated by a minus sign. Round final answer to 2 decimal places.) 0.2.