1. The National Center for Health Statistics reports that the systolic blood pressure for males 35...
1. The National Center for Health Statistics reports that the systolic blood pressure for males 35 to 44 years of age has a mean of 128. In a study of business executives, a random sample of 101 executives has a mean systolic blood pressure of 134 with a standard deviation of 25. Do the data suggest that the mean systolic blood pressure for business executives is higher than 128? Use a 5% significance level?
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1. The National Center for Health Statistics reports that the
systolic blood pressure for males 35...
The National Center for Health Statistics reports that the mean systolic blood pressure for males 35...
The National Center for Health Statistics reports that the mean systolic blood pressure for males 35 to 44 years of age is 128 mmHg and the standard deviation in this population is 15 mmHg. 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 x 126.07 mmHg. Find the power of a one sided test that the executives blood...
The National Center for Health Statistics reports that the mean systolic blood pressure for males 35...
The National Center for Health Statistics reports that the mean systolic blood pressure for males 35 to 44 years of age is 128. Do the executives of a large company have a different mean blood pressure? We collect data on 72 executives and find x-bar=126.07 and s=15. For this test, we plan to use a significance level of 0.05. 1. State the null and alternative hypothesis. 2. What is the value of alpha? 3. Using a calculator, conduct the appropriate...
The National Center for Health Statistics reports that the mean systolic blood pressure for males 35...
The National Center for Health Statistics reports that the mean systolic blood pressure for males 35 to 44 years of age is 128. Do the executives of a large company have a different mean blood pressure? We collect data on 72 executives and find X ¯ =126.07 and s = 15. For this test, we plan to use a significance level of 0.05. 1. State your null and alternative hypothesis. 2. What is the value of alpha? 3. Use your...
Suppose the systolic blood pressure (in mm) of adult males has an approximately normal distribution with...
Suppose the systolic blood pressure (in mm) of adult males has an approximately normal distribution with mean μμ =125 and standard deviation σσ =14. Create an empirical rule graph with the following: A title and label for the horizontal axis including units. Vertical lines for the mean and first 3 standard deviations in each direction with numerical labels on the horizontal axis Labels for the areas of the 8 regions separated by the vertical lines as well. Note: This may...
Suppose the systolic blood pressure (in mm) of adult males has an approximately normal distribution with...
Suppose the systolic blood pressure (in mm) of adult males has an approximately normal distribution with mean μμ =125 and standard deviation σσ =14. Create an empirical rule graph with the following: A title and label for the horizontal axis including units. Vertical lines for the mean and first 3 standard deviations in each direction with numerical labels on the horizontal axis Labels for the areas of the 8 regions separated by the vertical lines as well. Note: This may...
based on data compiled by the world health organization, the mean systolic blood pressure in the...
based on data compiled by the world health organization, the mean systolic blood pressure in the united states is 120, the standard deviation is 16 and the pressures are normally distributed. Find the percent of individuals who have blood pressure between 120-128.
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 119 and a standard deviation of 15 . A reading above 140 is considered to be high blood pressure. Complete parts a through d below. a) What is thez-score for a blood pressure reading of130? 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...
Researchers measured the seated systolic blood pressure of 47 healthy white males. The resulting publication reports...
Researchers measured the seated systolic blood pressure of 47 healthy white males. The resulting publication reports x ̅= 114.9 mm Hg and s = 9.3 mm Hg. Give a 95% confidence interval for the mean blood pressure in the population from which the subjects were recruited. Question 7 options: A) (105.6, 124.2) B) (112.2, 117.6) C) (111.4, 118.4) D) (112.7, 117.1) E) (114.4, 115.4)
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 120 and a standard deviation of 14. 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?
8. Normal blood pressure typically is defined as having systolic pressure < 120 and diastolic pressure...
8. Normal blood pressure typically is defined as having systolic pressure < 120 and diastolic pressure <80. Among US residents age 40+, mean systolic pressure is 130 with a standard deviation of 35, and mean diastolic pressure is 80 with a standard deviation of 20. a) What is the probability that a US resident 40+ has high systolic blood pressure? b) What is the probability that a US resident 40+ does not have high diastolic blood pressure?
The National Center for Health Statistics reports that the mean systolic blood pressure for males 35 to 44 years of age is 128 mmHg and the standard deviation in this population is 15 mmHg. 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 x 126.07 mmHg. Find the power of a one sided test that the executives blood...
8. Normal blood pressure typically is defined as having systolic pressure < 120 and diastolic pressure <80. Among US residents age 40+, mean systolic pressure is 130 with a standard deviation of 35, and mean diastolic pressure is 80 with a standard deviation of 20. a) What is the probability that a US resident 40+ has high systolic blood pressure? b) What is the probability that a US resident 40+ does not have high diastolic blood pressure?
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