A random sample of 40 taxpayers with adjusted gross incomes, Ask an Expert

Statistics

A random sample of 40 taxpayers with adjusted gross incomes of between $100,000 and $200,000 was drawn. These taxpayers claimed an average of 9,922 in medical expenses for the year. Assume the population standard deviation for these deductions was $2,400. Construct confidence intervals to estimate the average deduction for the population with the following levels of significance.

A) 2%

B) 5%

C) 10%

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M91704345

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

The average height of young adult males has a normal

The average height of young adult males has a normal distribution with standard deviation of 2.5 inches. You want to estimate the mean height of students at your college or university to within 0.6 inch with 93% confiden ...

A doctor whats to exam prior medical records in an attempt

A doctor whats to exam prior medical records in an attempt to estimate the proportion of juvenile valley fever cases that escalated to spinal meningitis. He wants to estimate the proportion within 2% with 98% certainty. ...

Stock valuationsuppose you know that a companys stock

Stock Valuation Suppose you know that a company's stock currently sells for $72 per share and the required return on the stock is 11.5 percent. You also know that the total return on the stock is evenly divided between a ...

When circuit boards used in the manufacture of compact disc

When circuit boards used in the manufacture of compact disc players are tested, the long run percentage of defectives is 5%. Let X= the number of defective boards in random sample of size n=25, so X ~ Bin( 25, .05). a) ...

Waterton lakes national park in alberta has 6 trails that

Waterton Lakes National Park in Alberta has 6 trails that reach the icefields. If a hiker wishes to reach the icefields in 3 different ways during a visit, how many different possibilities would there be?

A researcher is planning to a silvicultural study using 3

A researcher is planning to a silvicultural study using 3 different fertilizers on 3 adjacent plots. How many ways can the 3 plots be arranged if there are 18 fertilizers to choose from?

If material hardness is normally distributed with a mean of

If material hardness is normally distributed with a mean of 42 and a standard deviation of 1. Specification limits for hardness are from 35 to 45. When the fraction defective is 0.0017 what is the corresponding PPM?

You are leasing a car for 48 months you put down 2000 now

You are leasing a car for 48 months. You put down $2000 now and agree to $500 monthly payments. The residual value is $15,000. The financing rate is 8% (monthly compounded). How much is the car worth?

The number of defective items produced by a machine in a

The number of defective items produced by a machine in a large factory follows a Poisson distribution with a rate of λ=1.5 per day. What is the probabilityThe machine produces exactly zero defective items on exactly two ...

The mean of the annual return for common stocks from 1926

The mean of the annual return for common stocks from 1926 to 1992 was 16.5%, and the standard deviation of the annual return was 19%. In later parts of the question we will ask: a. What is the probability that the stock ...

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