I need to know the P-value and the decision. The test statistic is already correct. Here is the corresponding data.

The data table contains waiting limes of customers at a bank, where customers enter a single waiting line that feeds three teller windows. Test the claim that the standard deviation of waiting times is less than 1.8 minutes, which is the standard deviation of waiting times at the same bank when separate waiting lines are used at each teller window. Use a signicance level of 0.01 . Complete parts (a) through (d) below. a Click on the icon to view the data. 3. Identify the null and alternative hypotheses. Choose the correct answer below. A. H0: 0 21.8 minutes 3' B. H0: 0 =1.8 minutes HA:o