Use the information below to answer questions 27 and 28 Consider again the NCHS-reported mean total cholesterol level in 2002 for all adults is 2003. Suppose a new drug is proposed to lower total cholesterol. A study is designed to evaluate the efficacy of the drug in lowering cholesterol. Fifteen patients are enrolled in the study and asked to take the new drug for 6 weeks. At the end of 6 weeks, cach patient's total tholesterol level is measured and the sample statistics are as follows: n= 15,1 = 195.9, and s = 28.7. Is there statistical evidence of a reduction in mean total cholesterol in patients after using the new drug for 6 works! 27. The test statistic to be used is and the hypotheses

to test are?

(1).

(i..

28. Given that the table or the critical value is -2145, do we accept or reject the null

hypothesis and why?.

Use the following information to answer questions 29 and 30. The focus to determine

the number of injuries cases per day in your hospital. A study is conducted injuries cases recorded for 3 months. From this sample, the rate of injuries per day is 0.5.

29. The distribution of the data is!

30: Write down the value for the probability that 2 injuries cases are received per

day​