Question

A random sample of 49 drinks from a beverage-dispensing machine gave an average of 12.2 ounces...

A random sample of 49 drinks from a beverage-dispensing machine gave an average of 12.2 ounces with a standard deviation of 0.7 ounces. How large a sample is needed to obtain a 95% confidence interval for the true mean amount dispensed by the machine within an error bound of 0.1?

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

Homework Answers

Answer #1

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
Consider a vending machine that is supposed to dispense eight ounces of soft drink. A random...
Consider a vending machine that is supposed to dispense eight ounces of soft drink. A random sample of 20 cups taken over a one-week period had an average of 7.845 ounces, and a standard deviation of 0.1986. Estimate a 95% confidence interval of the true mean dispensed by the machine and interpret (in a sentence) what it means.
A soft-drink machine is designed to discharge, when operating properly, at most 20 ounces of beverage...
A soft-drink machine is designed to discharge, when operating properly, at most 20 ounces of beverage per cup with a standard deviation of 2.1 ounces. To check the machine reliability, a random sample of 25 cupfuls is selected. Compute the power of the test if the true (actual) population average amount dispensed is 21.6 ounces per cup. Use a = 0.0294.
A soft-drink machine is designed to discharge, when operating properly, at most 20 ounces of beverage...
A soft-drink machine is designed to discharge, when operating properly, at most 20 ounces of beverage per cup with a standard deviation of 2.1 ounces. To check the machine reliability, a random sample of 25 cupfuls is selected. Compute the power of the test if the true (actual) population average amount dispensed is 21.6 ounces per cup. Use   . Please show work.
A random sample of 49 teenagers from a large population was surveyed, and the average number...
A random sample of 49 teenagers from a large population was surveyed, and the average number of movies that they had rented in the past week was x = 1.9, with a sample standard deviation of s = 0.5. a) Construct a 95% confidence interval for the average number of movies rented by teenagers in a week. b) Construct a 99% confidence interval for the average number of movies rented by teenagers in a week.
A random sample of 49 teenagers from a large population was surveyed, and the average number...
A random sample of 49 teenagers from a large population was surveyed, and the average number of movies that they had rented in the past week was x = 1.9, with a sample standard deviation of s = 0.5. a) Construct a 95% confidence interval for the average number of movies rented by teenagers in a week. b) Construct a 99% confidence interval for the average number of movies rented by teenagers in a week.
A random sample of 49 teenagers from a large population was surveyed, and the average number...
A random sample of 49 teenagers from a large population was surveyed, and the average number of movies that they had rented in the past week was x = 1.9, with a sample standard deviation of s = 0.5. a) Construct a 95% confidence interval for the average number of movies rented by teenagers in a week. b) Construct a 99% confidence interval for the average number of movies rented by teenagers in a week.t v
A random sample of 49 lunch customers was selected at a restaurant. The average amount of...
A random sample of 49 lunch customers was selected at a restaurant. The average amount of time the customers in the sample stayed in the restaurant was 40 minutes. From past experience, it is known that the population standard deviation equals 10 minutes. a. Compute the standard error of the mean. b. Construct a 95% confidence interval for the true average amount of time customers spent in the restaurant. c. With a .95 probability, what sample size would have to...
Question 1 A random sample of 49 teenagers from a large population was surveyed, and the...
Question 1 A random sample of 49 teenagers from a large population was surveyed, and the average number of movies that they had rented in the past week was x = 1.9, with a sample standard deviation of s = 0.5. a) Construct a 95% confidence interval for the average number of movies rented by teenagers in a week . b) Construct a 99% confidence interval for the average number of movies rented by teenagers in a week.
A bottling machine can be regulated so that it discharges an average of ounces per bottle....
A bottling machine can be regulated so that it discharges an average of ounces per bottle. It has been observed that the amount of fill (Y) dispensed by the machine is normally distributed with sigma = 1 ounce. If Y1, Y2, ..., Y16 is a random sample from the output of the machine on a given day (all bottled with the same machine setting). (a) What is the mean of barY? i.e. µ = ? (b) What is the standard...
A jar of peanuts is supposed to have 16 ounces of peanuts. The filling machine inevitably...
A jar of peanuts is supposed to have 16 ounces of peanuts. The filling machine inevitably experiences fluctuations in​ filling, so a​ quality-control manager randomly samples 12 jars of peanuts from the storage facility and measures their contents. She obtains the accompanying data. Complete parts​ (a) through​ (d) below. Jar values 15.93 15.73 16.19 15.36 15.82 15.84 15.56 16.15 15.79 15.42 16.28 16.51 ​(b) Determine the sample standard deviation. s=? ​(Round to three decimal places as​ needed.) ​(c) Construct a...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT