Calculate the percentage alive in each of the treatment

Assignment Help Basic Statistics

Reference no: EM131793036

Transfusions for Bleeding in the Stomach Should patients who are bleeding from the stomach get transfusions when their hemoglobin level falls below 7 grams per deciliter (restrictive strategy) or when it falls to 9 grams per deciliter (liberal strategy)?

A study used random assignment with 461 patients assigned to the restrictive strategy and 460 to the liberal strategy (Villanueva et al. 2013). The table shows survival after six weeks in each group.

a. Calculate the percentage alive in each of the treatment groups, and write a sentence comparing the percentages in the context of this study. Call the restrictive group 1 and the liberal group 2, and find the difference, p1- p2.

b. Find a 95% confidence interval for the difference in proportions alive in the two groups, and explain whether the interval captures 0 and what that means. Use the same difference as in part a. Assume that the conditions are met, although we have random assignment and not a random sample.

c. For the 95% confidence interval from part b, explain what the signs of the boundary values mean and whether we can conclude that one treatment causes the better result.

d. If you had a relative with bleeding and his hemoglobin level dropped to 8.5 grams per deciliter, would you argue for a transfusion or wait until it dropped further?

Reference no: EM131793036

Questions Cloud

Describe impact of diversity trends and changes to the firm : Describe Impact of diversity trends and changes to the firm based on statistical data. Recommendation to the firm for sustaining a diverse workforce.

Find out the income chargeable to tax : Find out the income chargeable to tax for the assessment year 2015-16 and 2016-17

Compare results for the three cost flow assumptions : compare results for the three cost flow assumptions, Calculate Cost of Goods Sold, Ending Inventory, gross profit and gross profit rate. Using FIFO

How often should ethics training take place : How often should ethics training take place? Why? By having ethics training, what can the employer and employees learn?

Calculate the percentage alive in each of the treatment : Calculate the percentage alive in each of the treatment groups, and write a sentence comparing the percentages in the context of this study.

Prepare a stockholders section of a classified balance sheet : Prepare a stockholder's section of a classified balance sheet

Prepare a cost of goods manufactured statement for april : Materials purchased during April 240,000. Prepare a cost of goods manufactured statement for April 2008

Find a confidence interval for the difference in proportions : Follow-up studies were done for decades. One research question was whether attendance at preschool had an effect on high school graduation.

Explain why do you feel a code of ethics is important : Explain why do you feel a code of ethics is important? What do you believe was effective with your current or past employer's code of ethics?

User Account

All Pages