In: Statistics and Probability
Consider the following sample data with mean and standard deviation of 18.1 and 7.4, respectively. (You may find it useful to reference the appropriate table: chi-square table or F table)
Class Frequency Less than 10: 33
10 up to 20: 88
20 up to 30: 69
30 or more "13
n = 203
b-1. Calculate the value of the test statistic. (Round the z value to 2 decimal places, all other intermediate values to at least 4 decimal places and final answer to 3 decimal places.) Test statistic