The systolic blood pressure of 51 employees from a company's IT division were recorded. There were...
The systolic blood pressure of 51 employees from a company's IT division were recorded. There were 31 of these employees with systolic blood pressure readings above 120, 17 with readings below 120, and 3 had readings of exactly 120. A sign test at the 0.01 significance level will be used to test the claim that the median systolic blood pressure for the company's IT division employees is 120. Round your answers to 3 places after the decimal point, if necessary....
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,...
Question 10 3 pts Captopril is a drug designed to lower systolic blood pressure. When subjects were treated with this drug, their systolic blood pressure readings (in mm Hg) were measured before and after the drug was taken. Results are given in the accompanying table. Using a 0.01 significance level, is there sufficient evidence to support the claim that captopril is effective in lowering systolic blood pressure? I J Subject Before After А 200 191 B 174 170 с 198...
Q7. The published figure for the median systolic blood pressure of middle-aged men is 128. To determine if there has been any change in this value, a random sample of 100 men has been selected. Test the hypothesis that the median is equal to 128, when 60 men have readings above 128. Use the sign test (which is not the signed-rank test). Q7. The published figure for the median systolic blood pressure of middle-aged men is 128. To determine if...
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? 0.05 for the test. Assume that the systolic Let d = (blood pressure before taking new drug-blood pressure after taking new drug. Use a significance level of ? 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=0.1 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 (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 a = 0.05 for the test. Assume that the systolic blood...
please provide detailed answer thank you A certain college claims that half of its students received a scholarship last year. A sample of 68 of this college's students revealed that 39 of them had received a scholarship last year, 25 did not receive a scholarship, and 4 declined to answer. A sign test at the 0.01 significance level will be used to test the college's claim. Round your answers to 3 places after the decimal point, if necessary. (a) What...
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 a 0.05 for the test. Assume that the systolic blood pressure levels are...
please help desperately need it 7) 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...