Does the treatment cause the effect

Assignment Help Basic Statistics

Reference no: EM131797056

Endocarditis Kang et al. reported on a randomized trial of early surgery for patients with infective endocarditis (a heart infection).

Of the 37 patients assigned to early surgery, 1 had a bad result (died, had an embolism, or had a recurrence of the problem within 6 months).

Of the 39 patients with conventional treatment (of whom more than half had surgery later on), 11 had a bad result.

a. Find and compare the sample percentages of those who had a bad result for each group.

b. Create a two-way table with the labels Early Surgery and Conventional across the top.

c. Test the hypothesis that early treatment and a bad result are independent at the 0.05 level.

d. Does the treatment cause the effect? Why or why not?

e. Can you generalize to other people? Why or why not?

Reference no: EM131797056

Questions Cloud

Product cost under super-variable costing : During its first year of operations, the company produced 54,000 units and sold 47,000 units. The company's only product is sold for $256 per unit.

Discuss sand companys financial statements : making any accounting entries related to its investment in Grand Company, Sand Company's financial statements for the year ended December

Find the percentage in each group in the sample : A study conducted in Uganda and Kenya looked at heterosexual couples in which one of the partners was HIV-positive and the other was not.

Prepare a statement of revenues and changes in net assets : Prepare a Statement of Revenues, Expenses, and Changes in Net Assets for the year ended December 31, 2012 assuming the city plans to account for its activities.

Does the treatment cause the effect : Endocarditis Kang et al. reported on a randomized trial of early surgery for patients with infective endocarditis (a heart infection).

What was the actual factory overhead for carston inc : What was the actual factory overhead for Carston Inc. for they year

Create a two-way table showing the observed values : Create a two-way table showing the observed values. Label the columns (across the top) with TRS and NA.

How you would correct up to eight of the errors : There are numerous errors within the above audit report. Identify and indicate how you would correct up to eight of the errors within this audit report.

Find the negative appendectomy rates for both samples : Test the hypothesis that the negative appendectomy rate and dosage are independent at the 0.05 level.

User Account

All Pages