Difference between the means of a treatment

Reference no: EM13104764

When testing for a difference between the means of a treatment and a placebo group, the computer display below is obtained. using a 0.05 significance level, is there sufficient evidence to support the claim that the treatment group (variable 1) comes from a population with a mean that is less than the mean for the placebo population (variable 2). Explain. State your conclusion.

Reference no: EM13104764

Questions Cloud

How long does it take for the ball to reach the wall : In a friendly game of handball, you hit the ball essentially at ground level and send it toward the wall with a speed of 15 m/s at an angle of 32° above the horizontal. (a) How long does it take for the ball to reach the wall if it is 4.2 m away? ..

Measures of national welfare : Discuss at least two alternative measures of national welfare that have been put forward? What are the primary strengths and weaknesses of these alternatives and discuss at least two alternative measures of national welfare that have been put f..

Compute the electric field between the plates : An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.95 mm. If a 21.7-V potential difference is applied to these plates, calculate the following. (a) the electric field between the pl..

Estimate the workstation cycle time : Francis Johnson's plant needs to design an effi cient assembly line to make a new product. The assembly line needs to produce 15 units per hour and there is room for only four workstations.

Difference between the means of a treatment : When testing for a difference between the means of a treatment and a placebo group, the computer display below is obtained. using a 0.05 significance level, is there sufficient evidence to support the claim that the treatment group (variable 1) co..

What is the potential energy of the pair of charges : Two point charges Q1 = +4.55 nC and Q2 = ?1.65 nC are separated by 50.0 cm. (a) What is the electric potential at a point midway between the charges? (b) What is the potential energy of the pair of charges? What is the significance of the algebrai..

Confidence and prediction intervals for light bulb life : An electrical firm manufactures light bulbs that have a length of life that is approximately normally distributed. If a sample of 16 bulbs has an average life of 50 hours and the population standard deviation is known to be 10 hours.

What is the distance between deer a and c : Three deer, A, B, and C, are grazing in a field. Deer B is located 63.4 m from deer A at an angle of 53.0 ° north of west. Deer C is located 77.8 ° north of east relative to deer A. The distance between deer B and C is 93.3 m. What is the distance..

Conclusion that there is a difference in means : The mean noise level for 24 hospital operating rooms was 56.3 dBA and the standard deviation was 7.5 dBA. At α = .05 can it be concluded that there is a difference in means?

User Account

All Pages