NT Patients are assumed to have total cholesterol levels with a mean of 194 mg/dl. A random sample of 25 patients with PH are presented. Can we conclude that PH patients have higher average cholesterol levels than NT patients? Alpha=0.05. State null/alternative hypothesis, state test statistic without inputting numbers/calculations yet, determine critical vale and decision rule, present the test statistic result and provide conclusion/p-value interpretation/90 confidence interval.

206.9 238.9 218.5 201.8 231.8

181.1 173.6 175.4 161.1 208

175.3 170.6 218.8 249.2 178.2

193.1 255.5 217.6 284.3 186.9

206.6 173.3 167.4 144.5 202.9