point(s) possible An industrial company claims that the mean ph level of water in a nearby river is 6.8. You randomly select 19 water samples and measure the pH of each. The sample mean is 6.7 and the standard deviation is 0.24. Is there enough evidence to reject the company's claim at a = 0.05? Hypotheses What are the null and alternative hypothesis? (Use the tool pallette for symbols.) 0:0 OOO Calculate the Test Statistic and P-value. Test Statistic P-value P = Test result P-value a O A. Do not reject Ho O B. Reject Ho