Question
In: Statistics and Probability
For the questions on this project assume that the mean systolic blood pressure of adults in...
For the questions on this project assume that the mean systolic blood pressure of adults in
America is 120 millimeters of mercury (mmHg) with a standard deviation of 5.6 mmHg. Also
assume the variable is normally distributed.
1) Your company develops a new treatment for high blood pressure. You want to test it on
people who are in the 90th
percentile or higher (people who have a higher systolic blood
pressure than 90% of other Americans). What is the cut-off blood pressure for this group –
what is the lowest systolic blood pressure a person could have to be considered for this trial?
2) In a group of 1,000 randomly selected adult Americans, about how many do we expect to
have a systolic blood pressure of 110 mmHg or less
Solutions
orchestra answered 2 years agoRelated Solutions
In a sample of 40 US adults, the mean systolic blood pressure was 127.3 mmHg. Assume...
In
a sample of 40 US adults, the mean systolic blood pressure was
127.3 mmHg. Assume that the standard deviation for the systolic
blood pressure of all US adults is 20 mmHg.
1. Find a 90% confidence interval for the mean systolic blood
pressure for all US adults.
2. interpret the confidence interval you found in problem
1.
3. how large of a sample would you need so that the margin of
error in a 90% confidence interval is at...
Assume that the mean systolic blood pressure of normal adults is 120 milliliters of mercury (mmHg)...
Assume that the mean systolic blood pressure of normal adults is
120 milliliters of mercury (mmHg) and the standard deviation is
5.6. Assume the variable is normally distributed. a) If an
individual is selected, find the probability that the individual’s
pressure will be between 118 and 122.8 mmHg. b) If a sample of 40
adults is randomly selected, find the probability that the sample
mean will be more than 121 mmHg.
The systolic blood pressure of adults in the USA is distributed with a mean of 121...
The systolic blood pressure of adults in the USA is distributed
with a mean of 121 and SD of 16.
Someone qualifies as having stage 2 high blood pressure if their
systolic pressure is 160 or higher.
A. What percentage of adults in the USA have stage 2 high blood
pressure?
B.Stage 1 BP is specified as systolic BP between 140 and 160.
What percentage of adults have stage 1?
C. your doctor tells you that you are in the...
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 120 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) Stage 1 high BP is specified as systolic BP between 140 and
160....
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
19 .
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) Stage 1 high BP is specified as systolic BP between 140 and
160....
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 118 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) Stage 1 high BP is specified as systolic BP between 140 and
160....
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
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 120 millimeters of mercury
(mmHg) and standard deviation of 23.
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...
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 millimeters of mercury
(mmHg) and standard deviation of 25.
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...
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