Ask Question, Ask an Expert

+61-413 786 465

info@mywordsolution.com

Ask Statistics and Probability Expert

A doctor wants to estimate the HDL cholesterol of all 20 to 29-year-old females.

(a) How many subjects are needed to estimate the HDL cholesterol within 2 points with 99% confidence assuming σ=14.2?

(b) Suppose the doctor would be content with 90% confidence.

(c) How does the decrease in confidence affect the sample size required?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M91947287
  • Price:- $15

Priced at Now at $15, Verified Solution

Have any Question?


Related Questions in Statistics and Probability

Assume that the coin is weighted so that a tail is 6 times

Assume that the coin is weighted so that a tail is 6 times as likely as a head. The coin is flipped 9 times. 1) What is the probability that both heads and tails occur?

Assume that 8 of people have ab blood a hospital blood bank

Assume that 8% of people have AB blood. A hospital blood bank needs ABblood so the blood bank begins checking potential donors. Use this Excel file geometric probabilities (enable the macro after opening the file) or thi ...

A chemical company is interviewing two people to become its

A chemical company is interviewing two people to become its risk manager. One has a background of management positions chemical refineries. The other has a background providing risk management consulting services to depa ...

Someone reasons that when a coin is tossed there are three

Someone reasons that when a coin is tossed, there are three possible outcomes: it comes up heads or tails or it lands on it edge. With three outcomes on each toss, the fundamental counting rule suggests that there are ni ...

Your company is considering a new project that will require

Your Company is considering a new project that will require $18,000 of new equipment at the start of the project. The equipment will have a depreciable life of 5 years and will be depreciated to a book value of $3,000 us ...

The weights of ice cream cartons are normally distributed

The weights of ice cream cartons are normally distributed with a mean weight of 20 ounces and a standard deviation of 0.5 ounces. You randomly select 25 cartons. What is the probability that their mean weight is greater ...

A political candidate wishes to determine if endorsing

A political candidate wishes to determine if endorsing increased social spending is likely to affect her standing in the polls. She has access to data on the popularity of several other candidates who have endorsed incre ...

A researcher is working on a study that examines the

A researcher is working on a study that examines the wellbeing of older adults. She has an interest in finding if there is a difference in life satisfaction scores (measured on a multi-item Likert scale) by ethnicity (Af ...

Compute the present value of an 1150 payment made in ten

Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round intermediate calculations. Round your answer to 2 decimal places.)

The stock of company tyk pays dividends annually with next

The stock of company TYK pays dividends annually, with next year's dividend expected to be $1 a share. For the next seven years, dividends are expected to grow at a rate of 6% a year. Thereafter, dividends are expected t ...

  • 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

Why might a bank avoid the use of interest rate swaps even

Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate

Describe the difference between zero coupon bonds and

Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p

Compute the present value of an annuity of 880 per year

Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As

Compute the present value of an 1150 payment made in ten

Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int

Compute the present value of an annuity of 699 per year

Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As