Question

Using the simple random sample of weights of women from a data​ set, we obtain these...

Using the simple random sample of weights of women from a data​ set, we obtain these sample​ statistics: n equals 35 and x overbar equals 147.88 lb. Research from other sources suggests that the population of weights of women has a standard deviation given by sigma equals 31.64 lb.

a. Find the best point estimate of the mean weight of all women.

b. Find a 90​% confidence interval estimate of the mean weight of all women.

a. The best point estimate is __ lb.

b. The 90% confidence interval estimate is__lb<u<__lb.

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

Homework Answers

Answer #1

TOPIC:Confidence interval for the population mean.

So,the 90% confidence interval estimate is-- 139.55 lb < u < 156.21 lb.(Rounded to two decimal places)(ANSWER).

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
Using the simple random sample of weights of women from a data​ set, we obtain these...
Using the simple random sample of weights of women from a data​ set, we obtain these sample​ statistics: n=35 and x=147.73 lb. Research from other sources suggests that the population of weights of women has a standard deviation given by sigma=30.06 lb. a. Find the best point estimate of the mean weight of all women. b. Find a 90​% confidence interval estimate of the mean weight of all women.
Using the simple random sample of weights of women from a data​ set, we obtain these...
Using the simple random sample of weights of women from a data​ set, we obtain these sample​ statistics: n=45 and x over bar equals=146.55 lb. Research from other sources suggests that the population of weights of women has a standard deviation given by sigma = 30.64lb. a. Find the best point estimate of the mean weight of all women. b. Find a 90​% confidence interval estimate of the mean weight of all women. a. The best point estimate is _____lb....
Using the simple random sample of weights of women from a data? set, we obtain these...
Using the simple random sample of weights of women from a data? set, we obtain these sample? statistics: n=45 and x over bar equals 141.67 lb. Research from other sources suggests that the population of weights of women has a standard deviation given by sigma equals 30.84 lbs. a. Find the best point estimate of the mean weight of all women. b. Find a 95?% confidence interval estimate of the mean weight of all women.
Using the simple random sample of weights of women from a data​ set, we obtain these...
Using the simple random sample of weights of women from a data​ set, we obtain these sample​ statistics: n= 35 and 152.64 lb. Research from other sources suggests that the population of weights of women has a standard deviation 32..75 lb. a. Find the best point estimate of the mean weight of all women. b. Find a ​99% confidence interval estimate of the mean weight of all women.
Using the simple random sample of weights of women from a data​ set, we obtain these...
Using the simple random sample of weights of women from a data​ set, we obtain these sample​ statistics: n=45 and x overbar=152.29 lb. Research from other sources suggests that the population of weights of women has a standard deviation given by sigma=32.03 lb. The best point estimate is___ The 99% confidence interval estimate is __ lb < μ < __lb (round to two decimals)
Using the simple random sample of weights of women from a data​ set, we obtain these...
Using the simple random sample of weights of women from a data​ set, we obtain these sample​ statistics: nequals40 and x overbarequals153.03 lb. Research from other sources suggests that the population of weights of women has a standard deviation given by sigmaequals30.91 lb. a. Find the best point estimate of the mean weight of all women. b. Find a 90​% confidence interval estimate of the mean weight of all women. Click here to view a t distribution table. LOADING... Click...
Using the simple random sample of weights of women from a data​ set, we obtain these...
Using the simple random sample of weights of women from a data​ set, we obtain these sample​ statistics: nequals40 and x overbarequals144.09 lb. Research from other sources suggests that the population of weights of women has a standard deviation given by sigmaequals32.28 lb. a. Find the best point estimate of the mean weight of all women. b. Find a 95​% confidence interval estimate of the mean weight of all women. Click here to view a t distribution table. LOADING... Click...
12. In order to estimate the mean amount of time computer users spend on the internet...
12. In order to estimate the mean amount of time computer users spend on the internet each​ month, how many computer users must be surveyed in order to be 90​% confident that your sample mean is within 15 minutes of the population​ mean? Assume that the standard deviation of the population of monthly time spent on the internet is 211 min. What is a major obstacle to getting a good estimate of the population​ mean? Use technology to find the...
Listed below are weights (in hectograms) of a simple random sample of girls at birth, based...
Listed below are weights (in hectograms) of a simple random sample of girls at birth, based on data from National Center for Health Statistics. Assume that the birth weights of girls are normally distributed with σ ​=3.0 hecgtograms. 33,28,33,37,31,32,31,28,34,28,33,26,20,31,28 A) use the sample data to construc a 96% confidence interval for the true mean birth weight of girls. B) use the sample data to construct 90% confidence interval for the true mean birth weight of girls. C) how do the...
A simple random sample of size n=22 is drawn from a population that is normally distributed....
A simple random sample of size n=22 is drawn from a population that is normally distributed. The sample mean is found to be x overbar 69 and the sample standard deviation is found to be s equals=20. Construct a 90​% confidence interval about the population mean. The 90​% confidence interval is ​(?,?​)
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT