This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Two surgical procedures are widely used to treat a certain type of cancer. To compare the success ... (Read 69 times)

bcretired

  • Hero Member
  • *****
  • Posts: 525
on: Feb 14, 2020

Question 1

Suppose you want to estimate the difference between two population proportions correct to within 0.03 with probability 0.90. If prior information suggests that p1 ≈ 0.4 and p2 ≈ 0.8, and you want to select independent random samples of equal size from the populations, how large should the sample sizes be?
◦ n1 = n2 = 1203
◦ n1 = n2 = 963
◦ n1 = n2 = 1925
◦ n1 = n2 = 1708

Question 2

Two surgical procedures are widely used to treat a certain type of cancer. To compare the success rates of the two procedures, random samples of surgical patients were obtained and the numbers of patients who showed no recurrence of the disease after a 1-year period were recorded. The data are shown in the table.



How large a sample would be necessary in order to estimate the difference in the true success rates to within .10 with 95% reliability?
Statistics ¦ McClave, Sincich, Tamarack ¦ 12th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by bcretired on Feb 14, 2020

katkat_flores

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Feb 14, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 29% of students answer this correctly


bcretired

  • Member
  • Posts: 525
Reply 2 on: Feb 14, 2020
Thanks for the timely response, appreciate it

raili21

  • Member
  • Posts: 324
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

bone cancer bone cancer
Glioma. (a) Illustration of a large glioma (colored area) within the left cerebral hemisphere in a s Glioma. (a) Illustration of a large glioma (colored area) within the left cerebral hemisphere in a s
Success of the Republican “Southern Strategy” Success of the Republican “Southern Strategy”
Mechanisms of Action of Drugs Used to Treat Angina Mechanisms of Action of Drugs Used to Treat Angina
Some Inherited Predispositions to Cancer Some Inherited Predispositions to Cancer
Increased Cancer Risk with BRCA1 or BRCA2 Mutation Increased Cancer Risk with BRCA1 or BRCA2 Mutation
Video: The Hypothalamus: The Body's Thermostat (Human Thermostat)

For a complete list of videos, visit our video library