Confidence interval, Basic Statistics

Questions

1. A genetic experiment with peapods resulted in one sample of offspring that consisted of 443 green peapods and 170 yellow peapods.  Construct a 95% confidence interval to estimate the true percentage of yellow peapods.

2. A random sample of the birth weights of 186 babies has a mean of 3103 grams and a standard deviation of 700 grams.  Construct a 98% confidence interval estimate of the mean birth weight for all such babies.

3. Salaries of 31 college professors who took a geology course in college have a mean of $58,000 and a standard deviation of $16,954.  Construct a 90% confidence interval estimate of the population standard deviation of all such professors.

 

 

Posted Date: 2/18/2013 12:34:57 AM | Location : United States







Related Discussions:- Confidence interval, Assignment Help, Ask Question on Confidence interval, Get Answer, Expert's Help, Confidence interval Discussions

Write discussion on Confidence interval
Your posts are moderated
Related Questions
Ask question #MinimumAgency revenues. An economic consultant was retained by a large employment agency in a metropolitan area to develop a regression model for predicting monthly a

Reproduction rates: if the majority of births are those of boys the population is bound to decrease while the reverse will be the case if the majority of births are girls. Similar


Clearing account An account used to build up entire charges, credits so that they can be disseminated later amongst the accounts to which they are allocable, so that the net diffe

Analyze the given data using chi-square test and see if it fits the expected 9:3:3:1 F 2 phenotypic ratio.   Ho: Null hypothesis: The F 2 phenotypic ratio follows the

CASE STUDY 1 3 MARKS An audit of the accounting records of Loch Ness Ltd. for the year ending 30 June 2012 discovered that the ending inventory balance

What are the uses of arithmetic mean?

A bag contain 5 white, 7 red and 8 black balls. If four balls are drawn one by one without Replacement, find the probability of getting all white balls.

difference between historigram and histogram

Mention the characteristics of Statistics. Explain any two applications of Statistics.