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: 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 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...

a. The best point estimate is nothing lb. ​(Type an integer or a​ decimal.)

b. The 90​% confidence interval estimate is nothing lbless thanmuless than nothing lb.

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

Homework Answers

Answer #1

a)

Point estimate = = 153.03

b)

90% confidence interval for is

- Z * / sqrt(n) < < + Z * / sqrt(n)

153.03 - 1.645 * 30.91 / sqrt(40) < < 153.03 + 1.645 * 30.91 / sqrt(40)

144.99 < < 161.07

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: 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...
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 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...
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= 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 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=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)
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...
A data set includes 103 body temperatures of healthy adult humans having a mean of 98.3°F...
A data set includes 103 body temperatures of healthy adult humans having a mean of 98.3°F and a standard deviation of 0.73°F. Construct a 99​% confidence interval estimate of the mean body temperature of all healthy humans. What does the sample suggest about the use of 98.6°F as the mean body​ temperature?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...
A data set includes 109 body temperatures of healthy adult humans for which x overbarequals98.2degreesF and...
A data set includes 109 body temperatures of healthy adult humans for which x overbarequals98.2degreesF and s equals 0.62 degrees Upper F. Complete parts​ (a) and​ (b) below. Click here to view a t distribution table. Click here to view page 1 of the standard normal distribution table. . Click here to view page 2 of the standard normal distribution table. a. What is the best point estimate of the mean body temperature of all healthy​ humans? The best point...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT