blood pressure reading is
110 +- 6.55
so,
we can write the absolute value inequality as
| x -110 | <= 6.55
| x - 110 | ![]() |
Suppose that 70% of a particular group of people have a systolic blood pressure reading of...
A nurse measured the blood pressure of each person who visited her clinic. Following is a relative-frequency histogram for the systolic blood pressure readings for those people aged between 25 and 40 years. The blood pressure readings were given to the nearest whole number. Approximately what percentage of the people aged 25-40 had a systolic blood pressure reading between 110 and 119 mm Hg inclusive? Systolic Blood Pressure for People Aged 25-40 Years
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...
The data show systolic and diastolic blood pressure of certain people. Find the regression equation, letting the systolic reading be the independent (x) variable. Find the best predicted diastolic pressure for a person with a systolic reading of 118. Is the predicted value close to 74.2, which was the actual diastolic reading? Use a significance level of 0.05. Systolic Diastolic Click the icon to view the critical values of the Pearson correlation coefficient r. 150 109 124 91 149 110...
You are studying how receiving free money affects someone’s blood pressure. The average systolic blood pressure is about 105, and you record 4 people who just got money and get 130, 140, 100, 110. What are your hypotheses and calculate the p-value of your experiment.
The data show systolic and diastolic blood pressure of certain people. Find the regression equation, letting the systolic reading be the independent (x) variable. Find the best predicted diastolic pressure for a person with a systolic reading of 148. Is the predicted value close to 90.3, which was the actual diastolic reading? Use a significance level of 0.05. Systolic Diastolic Click the icon to view the critical values of the Pearson correlation coefficient 139 102 112 83 113 57 150...
The data show systolic and davol blood pressure of certain people. Find the regression equation letting the st is the predicted value does lo 69.0, which was the actual diastolic roading? Use agricance level of 0.05. reading bete independent variabile Find the best predicted distresu for a persona t g e 150 Diastolle Cok the loon to view the co 101 102 104 3 u es of the Pearson correlation coefficient 74 What is the regression equation? Y o und...
When subjects were treated with a drug, their systolic blood pressure readings (in mm Hg) were measured before and after the drug was taken. Results are given in the table below. Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Using a 0.05 significance level, is there sufficient evidence to support the claim that the drug is effective in lowering systolic blood pressure? Before: 188, 210, 157,...
A poll found that a particular group of people read an average of 11,1 books per year The pollsters are 99% confident that the result from this poll is off by fewer than 1.59 books from the actual average x, Express this situation as an inequality involving absolute value, and solve the inequality for x to determine the interval in which the average is likely to fall Express the situation as an inequality involving absolute value. (Use integers or decimals...
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introduction Blood pressure measurements are always expressed by two numbers, the systolic pressure over the diastolic pressure. The blood pressure cuff is inflated until the air pressure within the cuff exceeds the blood pressure in the artery in the arm. This causes the artery to collapse, temporarily shutting down the flow of blood. Then, pressure in the cuff is slowly reduced until air pressure in the cuff becomes less than pressure in the artery, allowing blood to...
An investigator theorizes that people who exercise regularly will have mean systolic blood pressure levels that are significantly different from those of people who do not participate in a regular exercise program. To test this idea, the investigator randomly assigns 21 subjects to an exercise program for 10 weeks and 21 subjects to a non-exercise comparison group. After ten weeks, the mean systolic blood pressure of subjects in the exercise group is 132 and the standard deviation is 10. After...