In a study of a proposed treatment for diabetes prevention, Ask an Expert

Statistics

In a study of a proposed treatment for diabetes prevention, 339 people under the age of 20 who were thought to be at high risk of developing type I diabetes were assigned at random to two groups. One group received twice-daily injections of a low dose of insulin. The other group (the control) did not receive any insulin, but was closely monitored. Summary data (from the article "Diabetes Theory Fails Test," USA Today, June 25, 2001) follow.

1047_proposed treatment for diabetes prevention.png

a. Use the given data to construct a 90% confidence interval for the difference in the proportion that develop diabetes for the control group and the insulin group.

b. Give an interpretation of the confidence interval and the associated confidence level.

c. Based on your interval from Part (a), write a few sentences commenting on the effectiveness of the proposed prevention treatment.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92649561

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

One study based on responses from 1016 randomly selected

One? study, based on responses from 1,016 randomly selected? teenagers, concluded that 44?% of teenagers cite grades as their greatest source of pressure. Use a 0.05 significance level to test the claim that fewer than h ...

A study of cancer was conducted among 10000 men in the

A study of cancer was conducted among 10,000 men in the United States who were 40-75 years of age. Every two years questionnaires are sent to these individuals, and newly diagnosed cases of various cancers were reported. ...

Imagine that i had two drugs x and z i administered the

Imagine that I had two drugs, X and Z. I administered the drugs to people with sleep difficulties for one month. The mean amount of sleep difficulties reported in the drug X group in the past month was 3.44 (SD = 2.34) a ...

The assessment of the allocation of profits and losses is

The assessment of the allocation of profits and losses is one of the three key areas in which process?

A process is normally distributed with a mean of 104

A process is normally distributed with a mean of 104 rotations per minute and a standard deviation of 8.2 rotations per minute. If a randomly selected minute has 118 rotations per minute, would the process be considered ...

A company recently had 26 million shares outstanding

A company recently had 26 million shares outstanding trading at $45/share. The company announces its intention to raise $290M by selling new shares. What price shoukd the company expect its existing shares shares to sell ...

The risk-free rate of return is 52 percent and the market

The risk-free rate of return is 5.2 percent and the market risk premium is 8.4 percent. What is the expected rate of return on a stock with a beta of 1.34?

In a population of phd students 50 have paid assistant

In a population of Ph.D students 50% have paid assistant ships. A random sample of n=200 students are chosen. What is the expected number of students who have paid assistant ships in this sample?

Why are scattered plots necessary when investigating the

Why are scattered plots necessary when investigating the relationship between quantitative variables?

Question 1 a random variable x is defined as the difference

Question: 1) A random variable X is defined as the difference between the higher value and the lowervalue when two dice are thrown. If they have the same value, X is zero. a.) Find the probability distribution for X. b.) ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert