Confidence interval for difference in mean reductions

Reference no: EM131026363

Two new drugs were given to patients with hypertension. The first drug lowered the blood pressure of 16 patients an average of 11 points, with a standard deviation of 6 points. The second drug lowered the blood pressure of 20 other patients an average of 12 points, with a standard deviation of 8 points. Determine a 95% confidence interval for the difference in the mean reductions in blood pressure, assuming that the measurements are normally distributed with equal variances.

Reference no: EM131026363

Questions Cloud

What is the minimum quantity of dry air needed to combust : Natural gas consists primarily of methane, CH4(g). Write a balanced chemical equation for the complete combustion of methane to produce CO2(g) as the only carbon-containing product.

Innovation at international foods - describe obstacles : In discussion with Josh, Tonya foreshadows "some serious obstacles to overcome." Describe these obstacles in detail.

Research the companys risk management strategies : Choose a company with which you are familiar. Research the company's risk management strategies. Research professional resources identifying effective employment practices to reduce risk.

Compute the total heat loss in watts : Suppose that Ti = 20 and To= Find the other three temperatures and the heat loss rate q in watts/meter2. Compute the total heat loss rate in watts if the wall's area is 10 meters2.

Confidence interval for difference in mean reductions : Determine a 95% confidence interval for the difference in the mean reductions in blood pressure, assuming that the measurements are normally distributed with equal variances.

Create a community health intervention/program. : Provide detailed information on how you will use the five steps of programming (program planning) to create a community health intervention/program.

Explain what is meant by a multigenerational workforce : Explain what is meant by a multigenerational workforce. What are the implications for HR management?

Find the characteristic and minimal polynomials for t : Find the characteristic and minimal polynomials for T, with explanation. (For the characteristic polynomial, recall that you will need to choose a basis for , find the matrix of T relative to that basis, and find the characteristic polynomial of t..

User Account

All Pages