A survey examined public opinion about the effectiveness of the criminal justice system in Baltimore (based on a scale of 1 - 10, with a response of 1 being the least favorable and a response of 10 being the most favorable). The overall view of the criminal justice system was measured in a national study and was positive - an average or 6.5 out of 10. The Baltimore survey had 150 respondents and a mean of 5.7 with a sample standard deviation of 1.5 . What kind of test of averages would be used to examine the difference between the average attitude toward police in Baltimore and the average attitude toward police in the USA as a whole? State the null hypothesis and a non-directional alternative/research hypothesis for the survey research outlined in the question above. State the hypothesis in sentences rather than symbols