Durations of clinical research studies awarded by a, Ask an Expert

Statistics

Durations of clinical research studies awarded by a particular federal agency are assumed to follow a normal distribution, with a mean of 24 months and a standard deviation of 2.5 months.

a. Find the probability that a study is awarded with a duration of more than 24 months.

b. Find the probability that a study is awarded with a duration of between 15 and 25 months.

c. Fill in the following statement, 90% of studies awarded have durations betwen ------------ and ---------- months.(consider the middle 90% of the distribution.)

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M91010531

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

Suppose that 20 of men p20 and 15 of women p 15 are

Suppose that 20% of men (P=.20) and 15% of women (P= .15) are carriers of a particular genetic trait. That trait can only be inherited by a child if both parents are carriers. What is the probability that a child is born ...

The national safety council reported that 52 of american

The National safety council reported that 52% of American turnpike drivers are men. A sample of 300 cars traveling southbound on the New Jersey Turnpike yesterday revealed that 170 were driven by men. At a 99% level of c ...

Transaction costsnbspnbspin late december you decide for

Transaction costs In late December you decide, for tax purposes, to sell a losing position that you hold in Twitter, which is listed on the NYSE, so that you can capture the loss and use it to offset some capital gains, ...

This table summarizes the results from alongtermrandomized

This table summarizes the results from along+termrandomized clinicaltrial to determine whether aspirin reduces the risk of heart attack. Researchers randomly assigned a large sample of healthy male physicians (22,071) ...

The revenue function rx and the cost function c9x for a

The revenue function R(x) and the cost function C9X) for a particular product are given. These functions are valid for the specified range of values. Find the number of units that must be produced to break even. R(x) =20 ...

A single person with a monthly taxable income of 2800 in

A single person with a monthly taxable income of $2800 in the 15% federal marginal bracket, has a state tax rate of 7.95% and social security taxes at 6.2%. This person forgoes consumption and instead places $230 into a ...

A researcher wants to determine if lead levels are

A researcher wants to determine if lead levels are different between the top of a glass of water and the bottom of a glass of water. Many samples of water are taken. From half, the lead level at the top is measured and f ...

1 according to the national health and nutrition

1. According to the National Health and Nutrition Examination Survey, published by the National Center for Health Statistics, the serum (noncellular portion of blood) total cholesterol level of US females 20 years old or ...

In a survey of 2936 adults 1431 say they have started

In a survey of 2936 adults, 1431 say they have started paying bills online in the last year. Construct a 99% confidence interval for the population proportion. A 99% confidence interval for the population proportion is ( ...

Letnbspnmnbspv denote the normal random variable with

Let N ( m , v ) denote the normal random variable with mean m and variance v . (a) If X is a Standard Normal variable, what is the distribution of the random variable 4 X - 1? (b) If X ~ N (3,1) and Y ~ ...

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