Question

In: Math

A group of five individuals with high blood pressure were given a new drug that was...

A group of five individuals with high blood pressure were given a new drug that was designed to lower blood pressure. Systolic blood pressure was measured before and after treatment for each individual, with the following results:

Subject

Before

After

1

172

145

2

164

132

3

168

129

4

158

135

5

183

145

Let μX represent the population mean before treatment and let μY represent the population mean after treatment. Find a 90% confidence interval for the difference μD=μX−μY . Round the answers to three decimal places.

The 90% confidence interval is

Solutions

Expert Solution


milcah answered 1 year ago
Next > < Previous

Related Solutions

23. A group of five individuals with high blood pressure were given a new drug that...
23. A group of five individuals with high blood pressure were given a new drug that was designed to lower blood pressure. Systolic blood pressure was measured before and after treatment for each individual. The mean and standard deviation for the before treatment were 168.6 and 9.3, respectively. The mean and standard deviation for the after treatment were 137.2 and 7.4, respectively. The 90% confidence for the mean reduction in systolic blood pressure is nearly?
five individuals with high blood pressure were given a new drug to see if it would...
five individuals with high blood pressure were given a new drug to see if it would lower their blood pressure. systolic blood pressure was measured before and after treatment for each individual. the results are below. before: person 1= 170 person 2= 164 person 3= 168 person 4= 158 person 5= 183 after: person 1= 145 person 2= 132 person 3= 129 perosn 4= 135 perosn 5= 145 construct a 95% confidence interval for mean reduction in systolic blood pressure,...
You test a new drug to reduce blood pressure. A group of 15 patients with high...
You test a new drug to reduce blood pressure. A group of 15 patients with high blood pressure report the following systolic pressures (measured in mm Hg): before medication: after medication: change: ̄y s 187 120 151 143 160 168 181 197 133 128 130 195 130 147 193 187 118 147 145 158 166 177 196 134 124 133 196 130 146 189 156.40 0 2 4 -2 2 2 4 1 -1 4 -3 -1 0 1 4...
Researchers were interested in determining a new drug for reducing high blood pressure. They obtained a...
Researchers were interested in determining a new drug for reducing high blood pressure. They obtained a sample of volunteers for the study and randomly divided them into two groups, C and T. A single medical practitioner, Dr. Daring, agreed to help the researchers in this study following a protocol of three steps: (i) The blood pressure of each subject was measured by Dr. Daring; (ii) the new drug was administered to subjects in group T and a placebo to subjects...
1) You test a new drug to reduce blood pressure. A group of 15 patients with...
1) You test a new drug to reduce blood pressure. A group of 15 patients with high blood pressure report the following systolic pressures (measured in mm Hg): ̄y s before medication: 187 120 151 143 160 168 181 197 133 128 130 195 130 147 193 157.53 27.409 after medication: 187 118 147 145 158 166 177 196 134 124 133 196 130 146 189 156.40 27.060 change: 0 2 4 -2 2 2 4 1 -1 4 -3...
A pharmaceutical company claims that its new drug reduces systolic blood pressure. The systolic blood pressure...
A pharmaceutical company claims that its new drug reduces systolic blood pressure. The systolic blood pressure (in millimeters of mercury) for nine patients before taking the new drug and 2 hours after taking the drug are shown in the table below. Is there enough evidence to support the company's claim? Let d = (blood pressure before taking new drug) − (blood pressure after taking new drug). Use a significance level of α = 0.05 for the test. Assume that the...
A pharmaceutical company claims that its new drug reduces systolic blood pressure. The systolic blood pressure...
A pharmaceutical company claims that its new drug reduces systolic blood pressure. The systolic blood pressure (in millimeters of mercury) for nine patients before taking the new drug and 2 hours after taking the drug are shown in the table below. Using this data, find the 99% confidence interval for the true difference in blood pressure for each patient after taking the new drug. Assume that the blood pressures are normally distributed for the population of patients both before and...
A pharmaceutical company claims that its new drug reduces systolic blood pressure. The systolic blood pressure...
A pharmaceutical company claims that its new drug reduces systolic blood pressure. The systolic blood pressure (in millimeters of mercury) for nine patients before taking the new drug and 2 hours after taking the drug are shown in the table below. Using this data, find the 99% confidence interval for the true difference in blood pressure for each patient after taking the new drug. Assume that the blood pressures are normally distributed for the population of patients both before and...
A pharmaceutical company claims that its new drug reduces systolic blood pressure. The systolic blood pressure...
A pharmaceutical company claims that its new drug reduces systolic blood pressure. The systolic blood pressure (in millimeters of mercury) for nine patients before taking the new drug and 22 hours after taking the drug are shown in the table below. Is there enough evidence to support the company's claim? Let d=(blood pressure before taking new drug)−(blood pressure after taking new drug). Use a significance level of α=0.01 for the test. Assume that the systolic blood pressure levels are normally...
A pharmaceutical company claims that its new drug reduces systolic blood pressure. The systolic blood pressure...
A pharmaceutical company claims that its new drug reduces systolic blood pressure. The systolic blood pressure (in millimeters of mercury) for nine patients before taking the new drug and 2 hours after taking the drug are shown in the table below. Is there enough evidence to support the company's claim? Let d=(blood pressure before taking new drug)−(blood pressure after taking new drug). Use a significance level of α=0.01 for the test. Assume that the systolic blood pressure levels are normally...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT