Question

Contents of barrels of whiskey are measured for alcohol content. If 12 barrels are tested and...

Contents of barrels of whiskey are measured for alcohol content. If 12 barrels are tested and found to have an average .45abv with standard deviation .03, find a 90% confidence interval for the true mean.

Answer choices:

[.4357, .4642]

None of these

[.4326, .4692]

[.4344, .4656]

[.4302,.4698]

0 0
Add a comment Improve this question Transcribed image text
Answer #1

Qus: calculate the confidence interval for true mean

Solution

Add a comment
Know the answer?
Add Answer to:
Contents of barrels of whiskey are measured for alcohol content. If 12 barrels are tested and...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • Q1. [15pts] A beer producer needs to specify a confidence interval for the mean alcohol content...

    Q1. [15pts] A beer producer needs to specify a confidence interval for the mean alcohol content of their beverages. They know that the standard deviation for the alcohol content of individual beverages is 1.0 ml/dL. What is the minimum sample size needed to create a 99 % confidence interval for the true alcohol a) content with a margin of error of at most 0.2 ml/dL? Suppose they measure the mean alcohol content from a random sample of 100 bottles and...

  • 1. A nutrition laboratory randomly selected and tested 26 reduced sodium hot dogs. It was found...

    1. A nutrition laboratory randomly selected and tested 26 reduced sodium hot dogs. It was found that their average (mean) sodium content is 310 mg with the standard deviation of 54 mg. It is known that the distribution of the sodium contents in this brand of hot dogs is approximately normal. What is a t* for a 90% confidence interval for the average (mean) sodium content of this brand of hot dogs? Round your answer to 4 decimal places. 2.A...

  • Question 14 8 pts A laboratory tested a sample of 100 chicken eggs and found that...

    Question 14 8 pts A laboratory tested a sample of 100 chicken eggs and found that the mean amount of cholesterol was 257 milligrams; the population standard deviation for all eggs is 15.2 milligrams. Use this data to construct a 95 percent confidence interval for the true mean cholesterol content of all such eges. (249.02. 264.98) (254.02.259.98 (251.02, 262.98) (255.02. 261.98) Question 15 8 pts A group of 19 randomly selected students from a state university has a mean age...

  • Question 14 8 pts A laboratory tested a sample of 100 chicken eggs and found that...

    Question 14 8 pts A laboratory tested a sample of 100 chicken eggs and found that the mean amount of cholesterol was 257 milligrams; the population standard deviation for alleggs is 15.2 milligrams. Use this data to construct a 95 percent confidence interval for the true mean cholesterol content of all such eggs. (251.02.262.981 1255.02.261.981 1249.02, 264.98) (254.02, 259.98) Question 15 8 pts A group of 19 randomly selected students from a state university has a mean age of 224...

  • A person measures the contents of 36 pop cans and finds the mean content to be...

    A person measures the contents of 36 pop cans and finds the mean content to be 12.1 fluid ounces with a standard deviation of 0.2 ounces. Construct a 99 percent confidence interval for the average fluid content of a can.E) [12.035, 12.165] A) [12.019, 12.181] B) [12.009, 12.191] C) [12.022, 12.178] D) [12.014, 12.186]

  • D Question 14 8 pts A laboratory tested a sample of 100 chicken eggs and found...

    D Question 14 8 pts A laboratory tested a sample of 100 chicken eggs and found that the mean amount of cholesterol was 257 milligrams; the population standard deviation for all eggs is 15.2 milligrams. Use this data to construct a 95 percent confidence interval for the true mean cholesterol content of all such eggs. (249.02, 264.98) (254.02, 259.98) (251.02, 262.98) (255.02, 261.98)

  • A laboratory tested 40 chicken eggs and found that the mean amount of cholesterol was 201...

    A laboratory tested 40 chicken eggs and found that the mean amount of cholesterol was 201 milligrams. It is known that the standard deviation of all such chicken eggs is s = 14.3 milligrams. Construct a 95 percent confidence interval for the true mean cholesterol content of all such eggs. O 197.3 <mu <204.7 196.6 < mu < 205.4 196.4 <mu <205.6 O 192.0 < < 210.0 Question 3 6 pts A randomly selected group of 40 bowlers from a...

  • You measured the moisture content of 16 tubes of a cosmetic product that your company had...

    You measured the moisture content of 16 tubes of a cosmetic product that your company had recently developed. The 16 tubes were selected at random from a large shipment. The results are given in the table below. What is the range of moisture content that 95% of the tubes are expected to have? What is the estimate of the true mean moisture content for your shipment (P 95%)? The mean moisture content for this product should be 10%. Based on...

  • A nutritionist wants to compare the mean protein content of grilled chicken sandwiches from Arby’s and...

    A nutritionist wants to compare the mean protein content of grilled chicken sandwiches from Arby’s and McDonald’s. You randomly select several chicken sandwiches from both restaurants and find the following: Arby’s finds from a sample of 15 sandwiches, a mean protein content of 29g with a sample standard deviation of 1.5g. McDonald’s finds from a sample of 20 sandwiches, a mean protein content of 25g with a sample standard deviation of 2g. Find a 95% confidence interval for the true...

  • Question 5. A random sample of 50 bottles of a brand of cough syrup is selected, and the alcohol content of each bottle...

    Question 5. A random sample of 50 bottles of a brand of cough syrup is selected, and the alcohol content of each bottle is measured. Let μ be the mean alcohol content for the population of all bottles of the brand under consideration. The 95% confidence interval estimated from the data is (7.8 μ 9.4). (a) would a 90% confidence interval calculated from the same sample be wider or narrower? Explain. (b) Consider the statement: there is a 95% chance...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT