Confidence interval of the true proportion of patients

Assignment Help Basic Statistics
Reference no: EM132848135

A report in the Journal of the American Medical Association found that patients who spend more than 48 hours in an intensive-care unit of a hospital increase their risk of developing dangerous blood clots. A random survey is taken of 275 people who spent more than 48 hours in an intensive- care unit found 82 developed dangerous blood clots. Determine a 90% confidence interval of the true proportion of patients that developed dangerous blood clots.

Reference no: EM132848135

Questions Cloud

Find the replacement time : Replacement times for Maytag washer and dryer sets are normally distributed with a mean of 8.8 years and a standard deviation of 1.5 years.
Detect differences between groups or categories : Two kinds of errors can occur when deciding whether or not to reject the null hypothesis, a type I error or type II error. In the type I error
What is the probability that the student will be a freshman : An upper-level sociology class has 120 registered students: 37 seniors, 50 juniors, 23 sophomores, and 10 freshmen.
Determine the average age for the sample : The following is a frequency distribution for the ages of a sample of employees at a local company.
Confidence interval of the true proportion of patients : Determine a 90% confidence interval of the true proportion of patients that developed dangerous blood clots.
What are the positive spillover effects of huge plantations : What are the positive spillover effects of huge plantations and mining companies?
Range of the coefficient of kurtosis : a. The Range of the coefficient of Kurtosis is from zero to infinity
What level of measurement is required for variable type : a. What level of measurement is required for each variable type? b. Can both types be used to describe both samples and populations?
Find the proportion of the total area : Using the z distribution table, find the proportion of the total area for the following, draw a picture of each, and shade in the target area:

Reviews

Write a Review

Basic Statistics Questions & Answers

  What is the standard deviation

The local zoo would like to institute a cheetah breeding program. In order to do so, their head zookeeper decides to look at a sample of 15 recent cheetah

  Define illusionary correlations

What is meant by illusionary correlations? Why is it so difficult for individuals to disprove their beliefs in correlations that are actually false?

  Will tobias be liable for the damage

Tobias leaned the bolts of fabric on the wall behind the counter and an employee accidently spilled his drink on them. Will Tobias be liable for the damage?

  Records and variables

A dataset has 1000 records and 50 variables with 5% of the values missing, spread randomly throughout the records and variables. An analysis decides to remove records that have missing values. About how many records would you expect would be remov..

  Suppose that it is known that the number of items produced

suppose that it is known that the number of items produced at a factory per week is a random variable x with mean 50. a

  The standard deviation of this sample was 133 residents at

according to the census bureau 3.04 people reside in the typical american household. a sample of 19 households in

  What percentage of the lots received by the manufacturer

If in fact each lot has a mean length of 3 meters, what percentage of the lots received by the manufacturer will be returned to the vendor (i.e., the supplier)?

  Confidence interval for the proportion of adults

Construct a 90% confidence interval for the proportion of adults from Country A who say human activity contributes to global warming ( , )

  Conduct a hypothesis test of belief

A Nissan Motor Corporation advertisement read, "The average man's I.Q. is 107. The average brown trout's I.Q. is 4. So why can't man catch brown trout?

  Explain f test for comparing three or more means

A researcher selected a sample of 50 residents from each of 3 different cities to determine if they were willing to participate in a medical experiment. which of the following assumptions is NOT made for the F test for comparing 3 or more means?

  Distribution of housing prices in topanga symmetric

Is the distribution of housing prices in Topanga symmetric, right skewed, or left skewed? Hint: Sketch the distribution.

  Nyc elementary schools and gets

An educational researcher wants to know if the whole-language approach to teaching reading differs in effectiveness from more traditional approaches.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd