Difference between the two population means

Assignment Help Basic Statistics

Reference no: EM13965391

Two sets of elementary school children were taught to read by different methods, 50 by each method. At the conclusion of the instructional period, a reading test gave results y1 = 74, y2 = 71, s1 = 9, and s2 = 10. What is the attained signi?cance level if you wish to see if there is evidence of a real difference between the two population means? What would you conclude if you desired an α-value of 0.05?

Reference no: EM13965391

Questions Cloud

Salaries of male and female professors : Assume that the salaries of male and female professors are both normally distributed with equal standard deviations.

Calculate centre line temperature : Calculate the centre line temperature and the temperature inside the plate 1.25 cm from themed plane after 3 minutes.

Normally distributed populations : The following information was obtained from two independent samples selected from two normally distributed populations with unknown but equal variances.

Prepare schedules of cost of goods manufactured : Prepare schedules of cost of goods manufactured and cost of goods sold and an income statement.

Difference between the two population means : At the conclusion of the instructional period, a reading test gave results y1 = 74, y2 = 71, s1 = 9, and s2 = 10. What is the attained signi?cance level if you wish to see if there is evidence of a real difference between the two population means?..

What does the formal job analysis process consist of : Based on your research, what specific selection method might you use for selecting the best candidate for the job, and why? What are two advantages and two disadvantages of this method?

Find the resultant force acting on the origin : Three forces are acting on the origin. F1 has a magnitude of 70 N and is 30 degrees north of east. F2 has a magnitude of 70 N and is 30 degrees north of west. F3 has a magnitude of 70 N and is along the south direction. Find the resultant force ac..

Explaine the planes appear to be decent tools : Your task: Reply to this email message, explaining that the planes appear to be decent tools, but they don't fi t Lee Valley's strategy of off ering only the best and most innovative tools.

Determining the manufacturer claim : A manufacturer claims that the mean life of batteries manufactured by his company is at least 44 months. A random sample of 40 of these batteries was tested, resulting in a sample mean life of 41 months with a sample standard deviation of 16 month..

User Account

All Pages