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I would like to know the answer to 5b

I would like to know the answer to 5b

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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I would like to know the answer to 5b

4c) Answer Problem 4b using Normal approximation. H = E(X)= np%3= 20 x 0.065 and o = \Var(X) = mp(1– p) = /20×0.065 × (1– 0.065) x - u 5- pu Z = - then use Z-table to find the probability, P(X25) 5. A patient is asked by her doctor to record her blood pressure at home. On each of 10 days, she took one reading, with results in the following table. The doctor wants to assess whether the underlying mean blood pressure is <140 or 2140. (15%) Days Blood Pressure 211 4 5. 7 10 109 117 125 125 129 123 118 124 127 8 5a) Provide a 95% confidence interval for the true mean blood pressure (to.025,9=2.26). ta232.26 Ô= 28.8 130.8 ± 2.26 X 28.8 %3D pomtesenn 13.81 20,6 957. Confiolint that tme blood piessne is VTO 5b) Answer the doctor's question based on the 95% Cl, (110.2,151.4) conhrolnt ( 1344) Etrs 140 THEEL Shwostat the mean bp ELE 140 6. A random sample of 67 lab rats are enticed to run through a maze, and a 95% confidence interval is constructed of the mean time it takes rats to do it. It is (2.3min, 3.1min). Which of the following statements is/are true? (More than one statement may be correct.) (10%) ( f 6a) 95% of the lab rats in the sample ran the maze in between 2.3 and 3.1 minutes. 6b) 95% of the lab rats in the population would run the maze in between 2.3 and 3.1 minutes. 6c) There is a 95% probability that the sample mean time is between 2.3 and 3.1 minutes. 1 minutes
Transcribed Image Text:4c) Answer Problem 4b using Normal approximation. H = E(X)= np%3= 20 x 0.065 and o = \Var(X) = mp(1– p) = /20×0.065 × (1– 0.065) x - u 5- pu Z = - then use Z-table to find the probability, P(X25) 5. A patient is asked by her doctor to record her blood pressure at home. On each of 10 days, she took one reading, with results in the following table. The doctor wants to assess whether the underlying mean blood pressure is <140 or 2140. (15%) Days Blood Pressure 211 4 5. 7 10 109 117 125 125 129 123 118 124 127 8 5a) Provide a 95% confidence interval for the true mean blood pressure (to.025,9=2.26). ta232.26 Ô= 28.8 130.8 ± 2.26 X 28.8 %3D pomtesenn 13.81 20,6 957. Confiolint that tme blood piessne is VTO 5b) Answer the doctor's question based on the 95% Cl, (110.2,151.4) conhrolnt ( 1344) Etrs 140 THEEL Shwostat the mean bp ELE 140 6. A random sample of 67 lab rats are enticed to run through a maze, and a 95% confidence interval is constructed of the mean time it takes rats to do it. It is (2.3min, 3.1min). Which of the following statements is/are true? (More than one statement may be correct.) (10%) ( f 6a) 95% of the lab rats in the sample ran the maze in between 2.3 and 3.1 minutes. 6b) 95% of the lab rats in the population would run the maze in between 2.3 and 3.1 minutes. 6c) There is a 95% probability that the sample mean time is between 2.3 and 3.1 minutes. 1 minutes
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