In order to ensure that there is not a large disparity in the quality of education at various schools in a school district, the school board wants to make sure that the variance of the mean standardized-test scores for all students at each school in the district is less than 6 . To test this claim, they looked at the mean student scores for the standardized test from a random sample of 19 schools in the district. The results from the survey found that the overall mean was a score of 195.210 with a standard deviation of 1.670 . With α=0.05 , perform a hypothesis test to determine if the variance is less than 6 . Assume that the district standardized-test scores are normally distributed. Step 2 of 3: Compute the value of the test statistic. Round your answer to three decimal places.