12) In a random sample of 50 patients undergoing a standard surgical procedure, 15 required medication for postoperative pain. In a random sample of 90 patients undergoing a new procedure, only 16 required pain medication. A physician claims that the proportion of patients who need pain medication is the same for both procedures. Test the claim with an appropriate hypotheses test. Use a 0.05 level of significance. a) Define the parameter(s). Fill-in-the-blanks. is the true. medication after undergoing the standard surgical procedure is the true of patients that require pain 5 of patients that require pain medication after undergoing the new surgical procedure b) Hypotheses. Note claim. c) Test d) Reject or Fail-to-Reject Ho? Why? e) Does the evidence contradict the physician's claim that the proportion of patients who need pain medication is the same for both procedures? yes or no f) At a 0.10 significance level, does the evidence contradict the physician's claim that the proportion of patients who need pain medication is the same for both procedures? yes or no

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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12) In a random sample of 50 patients undergoing a standard surgical procedure, 15 required
medication for postoperative pain. In a random sample of 90 patients undergoing a new
procedure, only 16 required pain medication. A physician claims that the proportion of
patients who need pain medication is the same for both procedures. Test the claim with
an appropriate hypotheses test. Use a 0.05 level of significance.
a) Define the parameter(s). Fill-in-the-blanks.
is the true.
medication after undergoing the standard surgical procedure
is the true
of patients that require pain
5
of patients that require pain
medication after undergoing the new surgical procedure
b) Hypotheses. Note claim.
c) Test
d) Reject or Fail-to-Reject Ho? Why?
e) Does the evidence contradict the physician's claim that the proportion of patients who
need pain medication is the same for both procedures? yes or no
f) At a 0.10 significance level, does the evidence contradict the physician's claim that the
proportion of patients who need pain medication is the same for both procedures? yes
or no
Transcribed Image Text:12) In a random sample of 50 patients undergoing a standard surgical procedure, 15 required medication for postoperative pain. In a random sample of 90 patients undergoing a new procedure, only 16 required pain medication. A physician claims that the proportion of patients who need pain medication is the same for both procedures. Test the claim with an appropriate hypotheses test. Use a 0.05 level of significance. a) Define the parameter(s). Fill-in-the-blanks. is the true. medication after undergoing the standard surgical procedure is the true of patients that require pain 5 of patients that require pain medication after undergoing the new surgical procedure b) Hypotheses. Note claim. c) Test d) Reject or Fail-to-Reject Ho? Why? e) Does the evidence contradict the physician's claim that the proportion of patients who need pain medication is the same for both procedures? yes or no f) At a 0.10 significance level, does the evidence contradict the physician's claim that the proportion of patients who need pain medication is the same for both procedures? yes or no
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