Name: PBHL-B301 Homework #4 1. Patients with chronic kidney failure may be treated by dialysis, using a machine that removes toxic waste from the blood, a function normally performed by the kidney. Kidney failure and dialysis can cause other changes, such as retention of phosphorus, which must be corrected by changes in diet. A study of the nutrition of dialysis patients measured the level of phosphorus in the blood of several patients on six occasions. Here are the data for one patient (in milligrams of phosphorus per deciliter of blood): 5.5 5.2 4.5 4.9 5.8 6.3 The measurements are separated in time and can be considered an SRS of the patient's blood phosphorus level. Assume that measure is distributed normal with o = 0.9 mg/dL. (1) (4 points) Give a 95% confidence interval for the mean blood phosphorus level. (2) (2 points) The normal range of phosphorus in the blood is considered to be 2.6 to 4.8 mg/dL. Is there strong evidence that this patient has a mean phosphorus level not in this range