Blood pressure: High blood pressure has been identified as a risk factor for heart attacks and strokes. The proportion of U.S. adults with high blood pressure is 0.5. A sample of 39 U.S. adults is chosen. Use the TI-84 Plus calculator. Round the answers to at least four decimal places.

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Author:Amos Gilat
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Blood pressure: High blood pressure has been identified as a risk factor for heart attacks and strokes. The proportion of U.S. adults with high blood pressure is 0.5. A sample of 39 U.S. adults is chosen. Use the TI-84 Plus calculator. Round the answers to at least four decimal places.

Part 1 of 6
(a) Is it appropriate to use the normal approximation to find the probability that more than 43% of the people in the sample have high blood pressure?
10 and n (1-p)
It is
Part 2 of 6
▼ appropriate to use the normal curve, since np = 19.5
Find the probability that more than 43% of the people in this sample have high blood pressure.
The probability that more than 43% of the people in this sample have high blood pressure is 2.6378
X
S
= 19.5
x
10.
Transcribed Image Text:Part 1 of 6 (a) Is it appropriate to use the normal approximation to find the probability that more than 43% of the people in the sample have high blood pressure? 10 and n (1-p) It is Part 2 of 6 ▼ appropriate to use the normal curve, since np = 19.5 Find the probability that more than 43% of the people in this sample have high blood pressure. The probability that more than 43% of the people in this sample have high blood pressure is 2.6378 X S = 19.5 x 10.
Part 3 of 6
(b) A new sample of 79 adults is drawn. Find the probability that more than 43% of the people in this sample have high blood pressure.
The probability that more than 43% of the people in this sample have high blood pressure is 1
Part: 3 / 6
Part 4 of 6
x
(c) Find the probability that the proportion of individuals in the sample of 79 who have high blood pressure is between 0.22 and 0.36.
The probability that the proportion of individuals in the sample of 79 who have high blood pressure is between 0.22 and 0.36 is
X
Ś
Transcribed Image Text:Part 3 of 6 (b) A new sample of 79 adults is drawn. Find the probability that more than 43% of the people in this sample have high blood pressure. The probability that more than 43% of the people in this sample have high blood pressure is 1 Part: 3 / 6 Part 4 of 6 x (c) Find the probability that the proportion of individuals in the sample of 79 who have high blood pressure is between 0.22 and 0.36. The probability that the proportion of individuals in the sample of 79 who have high blood pressure is between 0.22 and 0.36 is X Ś
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