Confidence interval, Basic Statistics

Assignment Help:

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.

 

 


Related Discussions:- Confidence interval

Managing Ashland, calculate the probabilities correct to 6 decimal places. ...

calculate the probabilities correct to 6 decimal places. Let pie = 0.02. a. P(X less than 3,

Standard deviation, Standard Deviation: The standard deviation is a gauge o...

Standard Deviation: The standard deviation is a gauge of the variance, or dispersion, of the market return over its average returns. Thus Standard Deviation gives an insight of tot

Hypothesis testing, a clinical psychologist claims that on average, at leas...

a clinical psychologist claims that on average, at least twenty five clients visit her per week. for a random sample of 8 weeks, the following numbers of clients were recorded; 25

Distribution values, find a distribution with 10 values between 0 and 10 th...

find a distribution with 10 values between 0 and 10 that has as large a variance as possible

Method of analysis used by the firm, 1. (i) Complaints were made about the ...

1. (i) Complaints were made about the level of pollutants in the discharge from a certain factory.  The factory refuted the complaints by showing the results of their own analysis

Spss data analysis assignment, At the end of their first year of teaching, ...

At the end of their first year of teaching, 11 teachers were jointly ranked by two school administrators to reflect their relative degree of teaching competence. Unknown to the adm

Construct confidence interval for the true mean return, A researcher has ga...

A researcher has gathered data on the daily returns on a portfolio of call options over a recent 250-day period. The mean daily return has been 0.001 and the sample standard deviat

Standard deviation, define standard deviation. their purpose,uses,advantage...

define standard deviation. their purpose,uses,advantages nd disadvantages,examples ,formula for grouped and ungrouped.

Cost accounting, what is the relationship of cost accounting to financial a...

what is the relationship of cost accounting to financial and management accounting?

Managerial, Manchester Custom Fabricating Company uses a job order system. ...

Manchester Custom Fabricating Company uses a job order system. At the beginning of May, Manchester had two jobs in process, Job #22 (DM = $600 and DL = $780), and Job #23 (DM = $75

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd