If the mean age at diagnosis of all people with early onset, Ask an Expert

Statistics

If the mean age at diagnosis of all people with early onset dementia is 55 years, find the probability that a random sample of 21 such people will have a mean age at diagnosis less than 52.5 years. Assume that the population standard deviation is 6.8 years. State any assumptions that you are making to solve this problem.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M91006069

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

Assume that a firm could borrow 100 billion dollars the

Assume that a firm could borrow 100 billion dollars. The most straightforward value from the leveraged recapitalization that people would estimate is the present value of interest tax shield. Assume the cost of debt is 0 ...

An all-equiry business has 175m shares outstanding selling

An all-equiry business has 175M shares outstanding selling for $20/share. Management believes interest rates are unreasonably low and decides to execute a leveraged recapitalization. It will raise $1B in debt and repurch ...

Among 140 subjects with positive test results there are 25

Among 140 subjects with positive test? results, there are 25 false positive? results; among 152 negative? results, there are 22 false negative results. If one of the test subjects is randomly? selected, find the probabil ...

Many restaurants and eateries are now posting calorie

Many restaurants and eateries are now posting calorie counts on their menus. We wonder if providing the calories results in customers ordering fewer calories than when the calories are not provided. We will use data from ...

You invested 7900 one year ago today it is worth 865490

You invested $7,900 one year ago. Today it is worth $8,654.90. What annual rate of interest did you earn? [use annual compounding]

Aprobability experiment consists of rolling a 6-sided die

A probability experiment consists of rolling a 6-sided die. What is the probability of rolling a number less than 6.

A shipment of 11 televisions sets contains 4 defective sets

A shipment of 11 televisions sets contains 4 defective sets. A hotel purchases 7 of these televisions sets. a: In how many ways can a hotel purchase 7 and receive 2 of the defective sets? b: What is the probability that ...

Heightnbspinnbspinchesnbsp69nbsp67nbsp69nbsp71nbsp70nbsp72nb

Height in inches 69 67 69 71 70 72 Weight in lbs 164 161 189 192 184 198 a) Find the equation of the regression line with height as the explanatory variable and use the regression line to find the predicted ...

1 this table summarizes the results from

1) 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 (22,07 ...

An automobile accidents occur over a 72 hour holiday period

An automobile accidents occur over a 72 hour holiday period are like events in a poisson process with = 10 per hour. Let Y be the time for the first accident. a) What is the mean of Y and variance of Y? b) Find P(Y > 15 ...

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