Question

Salaries of 47 47 college graduates who took a statistics course in college have a​ mean,...

Salaries of 47 47 college graduates who took a statistics course in college have a​ mean, x overbar x​, of $ 63 comma 400 $63,400. Assuming a standard​ deviation, sigma σ​, of ​$ 11 comma 850 11,850​, construct a 99 99​% confidence interval for estimating the population mean mu μ.

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Solution :

Given that,

Z/2 = 2.576

Margin of error = E = Z/2* ( /n)

= 2.576 * (11850 / 47)

= 4453

At 99% confidence interval estimate of the population mean is,

- E < < + E

63400 - 4453 < < 63400 + 4453

58947 < < 67853

(58947 , 67853)

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Salaries of 45 college graduates who took a statistics course in college have a​ mean, overbar...
Salaries of 45 college graduates who took a statistics course in college have a​ mean, overbar x​, of comma $65,500. Assuming a standard​ deviation, sigmaσ​, of ​$14 comma 14,971​, construct a 99​% confidence interval for estimating the population mean μ. $ less than< μless than<​$
Salaries of 45 college graduates who took a statistics course in college have a mean, x...
Salaries of 45 college graduates who took a statistics course in college have a mean, x overbar , of $ 65 comma 900 . Assuming a standard deviation, sigma , of $12 comma 992 , construct a 95 % confidence interval for estimating the population mean u .
Salaries of 34 college graduates who took a statistics course in college have a​ mean, x...
Salaries of 34 college graduates who took a statistics course in college have a​ mean, x overbar​, of $ 68 comma 500. Assuming a standard​ deviation, sigma​, of ​$12 comma 046​, construct a 99​% confidence interval for estimating the population mean mu. Click here to view a t distribution table.LOADING... Click here to view page 1 of the standard normal distribution table.LOADING... Click here to view page 2 of the standard normal distribution table.LOADING... ​$ nothingless than muless than​$ nothing...
Salaries of 44 college graduates who took a statistics course in college have a​ mean,x​bar,of $63,600.Assuming...
Salaries of 44 college graduates who took a statistics course in college have a​ mean,x​bar,of $63,600.Assuming a standard​ deviation,σ​,of $12,063​,construct a 95​% confidence interval for estimating the population mean μ. ____< mu<____
Salaries of 4747 college graduates who took a statistics course in college have a​ mean, x...
Salaries of 4747 college graduates who took a statistics course in college have a​ mean, x overbarx​, of $63,000. Assuming a standard​ deviation, sigmaσ​, of ​$16 comma 37216,372​, construct a 9090​% confidence interval for estimating the population mean μ. ​(Round to the nearest integer as​ needed.)
Salaries of 48 college graduates who took a statistics course in college have a​ mean, x...
Salaries of 48 college graduates who took a statistics course in college have a​ mean, x of $ 60,700. Assuming a standard​ deviation, sigma​, of ​$10,499​, construct a 90​% confidence interval for estimating the population mean mu. Click here to view a t distribution table. LOADING... Click here to view page 1 of the standard normal distribution table. LOADING... Click here to view page 2 of the standard normal distribution table. LOADING... ​$ nothingless thanmuless than​$ nothing ​(Round to the...
Question 3 4 pts A sample of salaries of 57 college graduates who took a statistics...
Question 3 4 pts A sample of salaries of 57 college graduates who took a statistics course in college have a​ mean of $78,829 and a standard​ deviation of $10,086​. Construct a 91​% confidence interval for estimating the population mean.
Starting salaries of 64 college graduates who have taken a statistics course have a mean of...
Starting salaries of 64 college graduates who have taken a statistics course have a mean of $42,500 with a standard deviation of $6,800. Find a 68% confidence interval for ?μ. (NOTE: Do not use commas or dollar signs in your answers. Round each bound to three decimal places.)
Starting salaries of 64 college graduates who have taken a statistics course have a mean of...
Starting salaries of 64 college graduates who have taken a statistics course have a mean of $43,500 with a standard deviation of $6,800. Find a 68% confidence interval for μ. (NOTE: Do not use commas or dollar signs in your answers. Round each bound to three decimal places.) Lower-bound: Upper-bound:
(1 point) Starting salaries of 135 college graduates who have taken a statistics course have a...
(1 point) Starting salaries of 135 college graduates who have taken a statistics course have a mean of $42,583. The population standard deviation is known to be $9,171. Using 99% confidence, find both of the following: A. The margin of error: B. Confidence interval: ,
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT