Question

A health study reported that in one country, systolic blood preassure reading hav a mean of...

A health study reported that in one country, systolic blood preassure reading hav a mean of 120 and a standard deviation of 18. A reading above 140 is considered to be high blood pressure. Complete parts a through d below.

a. What is the z-score for a blood pressure reading of 140? (round to 2 decimal places)

b. The proportion with high blood pressure is? (Round to four decimals)

c. What proportion of the population has systolic blood pressure in the range from 100 to 140? (Round to our decimals)

d. Find the 90th percentile blood pressure readings. (Round to the nearest whole number)

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A World Health Organization study of health in various countries reported that in Canada, systolic blood...
A World Health Organization study of health in various countries reported that in Canada, systolic blood pressure readings have a mean of 121 and a standard deviation of 16. A reading above 140 is considered to be a high blood pressure. Assume that the distribution of systolic blood pressure is approximately normal. Let X denote the systolic blood pressure of a randomly selected Canadian. Use tables to find the third quartile of the distribution of the systolic blood pressure among...
The systolic blood pressure (given in millimeters) of males has an approximately normal distribution with mean...
The systolic blood pressure (given in millimeters) of males has an approximately normal distribution with mean μ = 135 and standard deviation σ = 12. (a) Calculate the z-scores for the male systolic blood pressures 130 and 140 millimeters. (Round your answers to two decimal places.) 130 mm      z = 140 mm z = (b) If a male friend of yours said he thought his systolic blood pressure was 2.5 standard deviations below the mean, but that he believed his...
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean...
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 121 millimeters of mercury (mmHg) and standard deviation of 17. Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher. Stage 1 high BP is specified as systolic BP between 140 and 160. Give your answers rounded to 4 decimal places. a. What is the probability that an adult in the USA has stage 2...
In a recent study, the Centers for Disease Control reported that diastolic blood pressures of adult...
In a recent study, the Centers for Disease Control reported that diastolic blood pressures of adult women in the U.S. are approximately normally distributed with mean 80.9 and standard deviation 9.9. A)   What proportion of women have blood pressures lower than 70? B)   What is the 80th percentile of blood pressures? C)   A woman has a blood pressure of 84 mm. What percentile is her blood pressure on? (Round up the final answer to the nearest whole number.) D)   A...
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean...
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 118 and standard deviation of 17 . Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher. a. Around what percentage of adults in the USA have stage 2 high blood pressure? Give your answer rounded to two decimal places. % b. If you sampled 2000 people, how many would you expect to have BP>...
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean...
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 122 and standard deviation of 23 . Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher. a. Around what percentage of adults in the USA have stage 2 high blood pressure? Give your answer rounded to two decimal places. % b. If you sampled 2000 people, how many would you expect to have BP>...
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean...
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 117 and standard deviation of 16 . Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher. a. Around what percentage of adults in the USA have stage 2 high blood pressure? Give your answer rounded to two decimal places. % b. If you sampled 2000 people, how many would you expect to have BP>...
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean...
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 121 and standard deviation of 20 . Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher. a. Around what percentage of adults in the USA have stage 2 high blood pressure? Give your answer rounded to two decimal places. % b. If you sampled 2000 people, how many would you expect to have BP>...
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean...
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 119 and standard deviation of 24 . Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher. a. Around what percentage of adults in the USA have stage 2 high blood pressure? Give your answer rounded to two decimal places. % b. If you sampled 2000 people, how many would you expect to have BP>...
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean...
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 119 and standard deviation of 22 . Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher. a. Around what percentage of adults in the USA have stage 2 high blood pressure? Give your answer rounded to two decimal places. % b. If you sampled 2000 people, how many would you expect to have BP>...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT