(Answered) A student researcher compares the heights of men and women

Statistics

A student researcher compares the heights of men and women from the student body of a certain college in order to estimate the difference in their mean heights. A random sample of 11 men had a mean height of 67.9 inches with a standard deviation of 2.95 inches. A random sample of 17 women had a mean height of 62.9 inches with a standard deviation of 2.62 inches. Determine the 99% confidence interval for the true mean difference between the mean height of the men and the mean height of the women. Assume that the population variances are equal and that the two populations are normally distributed.

Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92532413
Price:- $20

Verified Expert

Priced at $40 Now at $20, Verified Solution

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

Is there a way to approach this problem in excelthe

Is there a way to approach this problem in Excel: The Marriott Hotel marketing team wants to estimate ρ, the proportion of the hotel guests who were return visitors in the past three years. They select a simple random sa ...

Heights of women follow a normal distribution with

Heights of women follow a normal distribution with mean μ=63.6 inches and standard deviation of σ=2.5 inches. Suppose random samples of 10 women are chosen and their mean height calculated. Please calculate the mean and ...

Describe the theoretical problems of ethics 3 the

Describe the theoretical problems of ethics (3), the objectives to solving them.

What is marketing discipline what is most peoples

What is marketing discipline? What is most people's perception of marketing discipline? Name an organization that has done a great job marketing. What did they do to make you feel this way?

1 if you deposited 2000 today in an account that gave you 5

1. If you deposited $2,000 today in an account that gave you 5% APR compounded interest, how much would you have in 10 years? 2. Suppose you want $5,000 in your bank account when you graduate in four years, how much woul ...

On august 19 2004 the internet search firm google went

On August 19, 2004, the Internet search firm Google went public, at an offer price of $85 per share. The IPO was unconventional in that Google used an auction to determine its offer price and sell shares to investors. In ...

Te gallup poll once asked a random sample of 100 adults

The Gallup Poll once asked a random sample of 100 adults. " Do you happen to jog?" Suppose 50 of these adults answered 'Yes,I jog" Based on this sample what is the estimated probability that 40% or less of all adults jog ...

The caloric consumption ofnbsp44nbspadults was measured and

The caloric consumption of 44 adults was measured and found to average 2,113. Assume the population standard deviation is 270 calories per day. Construct confidence intervals to estimate the mean number of calories consu ...

It is now may 1 2015 and timmy has just purchased a

It is now May 1, 2015, and Timmy has just purchased a five-year U.S. government bond (FV = $1,000) with a quoted price of 93.779. This bond has a 6-percent coupon rate, and the last semi-annual coupon payment was made on ...

Letnbspxbar6nbspdenote the sample mean of a

Let X(bar) 6 denote the sample mean of a sample X 1 , X 2 , ..., X 6 from Unif (-1, 3). (a) What is the expected value of X(bar) 6 ? (b) What is the variance of X(bar) 6 ?

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