Question
In: Statistics and Probability
A health study reported that, in one country, systolic blood pressure readings have a mean of...
A health study reported that, in one country, systolic blood pressure readings have a mean of 125 and a standard deviation of 14. A reading above 140 is considered to be high blood pressure. Complete parts a through d below.
a. z score of a 125 blood pressure reading
b. assuming normal distribution, wqhat proportion of the population ahas high blood pressure.
c. proportion of popultion between 125 and 140
d. Find the 90th percentile blood pressure readings.
please show work. I really dont know what im doing
Solutions
Expert Solution
Let , 
a. The Z score of a 125 blood pressure reading is ,
b. Since , the reading above 140 is considered to be high blood pressure
Therefore , the proportion of the population ahas high blood pressure is ,
c.
d.The 90th percentile blood pressure readings is ,
From normal probability table ,
orchestra answered 1 year agoRelated Solutions
A health study reported that, in one country, systolic blood pressure readings have a mean of...
A health study reported that, in one country, systolic blood
pressure readings have a mean of 118 and a standard deviation of
16.A reading above 140 is considered to be high blood pressure.
a. What is the z-score for a blood pressure reading of
140?
b. If systolic blood pressure in that country has a normal
distribution, what proportion of the population suffers from high
blood pressure?
c. What proportion of the population has systolic blood pressure
in the range...
Systolic blood pressure readings for females are normally distributed with a mean of 125 and a...
Systolic blood pressure readings for females are normally
distributed with a mean of 125 and a standard deviation of 10.34.
If 60 females are randomly selected then find the probability that
their mean systolic blood pressure is between 122 and 126. Give
your answer to four decimal places.
The data show the systolic and diastolic blood pressure readings for 12 women.
The data show the systolic and diastolic blood pressure readings for 12 women.
X=Systolic 123 116 82 126 116 138 109 119 155 106 178 84
Y=Diastolic 66 71 62 84 70 91 67 66 80 70 89 72
a….What is the Y-INTERCEPT of the Least-Squares regression equation?
b…..Predict the diastolic reading for a woman whose systolic reading is 165.
c…..What percent of the variation in diastolic pressure is due to factors...
One with a systolic blood pressure greater than 129 is considered to have high blood pressure....
One with a systolic blood pressure greater than 129 is
considered to have high blood pressure. A study recorded
the systolic blood pressures of 14 randomly selected Americans,
which yielded a mean of 131.57 with standard deviation 15.88.
Conduct a hypothesis test to see if you can say
that Americans, on average, have high blood pressure.
1.Write the hypotheses for this test.
2.What is the test statistic?
3.What is the p-value?
4.Using α = 0.05, decide whether or not to...
According to the National Center for Health Statistics, the mean systolic blood pressure for males 35...
According to the National Center for Health Statistics, the mean
systolic blood pressure for males 35 to 44 years of age is 128. The
health director of a large company wonders if this national average
holds for the company's middle-aged male employees. The director
examines the medical records of a random sample of 72 male
employees in this age group and records each of their systolic
blood pressure readings.
State an appropriate pair of hypotheses for a
significance test in...
Company executives’ blood pressure The National Center for Health Statistics reports that the systolic blood pressure...
Company executives’ blood pressure
The National Center for Health Statistics reports that the
systolic blood pressure for males 35 to 44 years of age has mean
128. The medical director of a large company looks at the medical
records of 72 executives in this age group and finds that the mean
systolic blood pressure in this sample is = 126.07. Is this
evidence that the company’s executives have a different mean blood
pressure from the general population? (Suppose we know...
Company executives’ blood pressure The National Center for Health Statistics reports that the systolic blood pressure...
Company executives’ blood pressure
The National Center for Health Statistics reports that the
systolic blood pressure for males 35 to 44 years of age has mean
128. The medical director of a large company looks at the medical
records of 72 executives in this age group and finds that the mean
systolic blood pressure in this sample is = 126.07. Is this
evidence that the company’s executives have a different mean blood
pressure from the general population? (Suppose we know...
The table gives systolic blood pressure readings for Intensive Care Unit patients in their teens and...
The table gives systolic blood pressure readings for Intensive
Care Unit patients in their teens and those in their eighties.
Teen
100
100
104
104
112
130
130
136
140
140
142
146
156
Eighties
80
100
100
110
110
122
130
135
136
138
140
141
162
190
190
A) Plot systolic blood pressure side-by-side boxplot for teen
and eighties, compare the spread of systolic blood pressure for
each group.
Q1
Q3
Teen
104
140
Eighties
110
140.5
B)...
Women have a mean systolic blood pressure of 125.17 with a standard deviation of 10.34. Female...
Women have a mean systolic blood pressure of 125.17 with a
standard deviation of 10.34. Female blood pressure is known to be
normally distributed.
(a) Find the probability that a randomly selected female has a
blood pressure below 110.
(b) What female systolic blood pressure represents the
99th percentile?
(c) A group of 45 women who take an allergy drug have a mean
systolic blood pressure under 120. Should the drug company include
a warning about users having lower systolic...
The distribution of systolic blood pressure in the general population is normal with a mean of...
The distribution of systolic blood pressure in the general
population is normal with a mean of 130 mm Hg and a standard
deviation of 20 mm Hg. In a special subgroup of 85 people with
glaucoma, we find that the mean systolic blood pressure is 135 m Hg
with a standard deviation of 20 mm Hg.
(a) Assuming that the standard deviation of the glaucoma
patients in the same as that of the general population, test for an
association between...
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- Welding requires a much greater level of skill than bolting. True or False Welding is more...
- Consider the bottle-filling process, which has a lower specification limit of 0.99 liter and an upper...
- xternal Financing We examined two important topics in finance during this unit: external financing requirements and...
- please answer all Which of the following statements is false? A. Ciprofloxacin inhibits DNA synthesis B....
- Is it possible to take the idea of “the customer is always right” too far so...
- PYTHON CODE Step one: Copy and paste these lyrics into a multistring line "Do you ever...
- Profit or Loss on New Stock Issue Security Brokers Inc. specializes in underwriting new issues by...
ADVERTISEMENT