HomeworkLib
Question

Gus Gale is the owner of Gale's Gas Garage. Gus would like to estimate the mean...

Gus Gale is the owner of Gale's Gas Garage. Gus would like to estimate the mean number of liters
(L) of gasoline sold to his customers. From his records, he selects a random sample of 60 sales and
finds the mean number of litres sold is 40 with a population standard deviation of 10 L.
(a) What is the point estimate of the population mean?
(b) Develop a 99% confidence interval for the population mean.
(c) Interpret the meaning of part (b).

math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

0 0
Add a comment
Know the answer?
Add Answer to:
Gus Gale is the owner of Gale's Gas Garage. Gus would like to estimate the mean...
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • Bob Nale is the owner of Nale's Texaco GasTown. Bob would like to estimate the mean...

    Bob Nale is the owner of Nale's Texaco GasTown. Bob would like to estimate the mean number of litres (L) of gasoline sold to his customers. Assume the number of litres sold follows the normal distribution with a standard deviation of 28 L. From his records, he selects a random sample of 23 sales and finds the mean number of litres sold is 71. a. What is the point estimate of the population mean? (Round the final answer to the...

  • Bob Nale is the owner of Nale's Texaco GasTown. Bob would like to estimate the mean...

    Bob Nale is the owner of Nale's Texaco GasTown. Bob would like to estimate the mean number of litres (L) of gasoline sold to his customers. Assume the number of litres sold follows the normal distribution with a standard deviation of 6 L. From his records, he selects a random sample of 12 sales and finds the mean number of litres sold is 38. a. What is the point estimate of the population mean? (Round the final answer to the...

  • . Bob is the owner of Nale’s Texaco Gas Town and he would like to estimate...

    . Bob is the owner of Nale’s Texaco Gas Town and he would like to estimate the mean number of litres (L) of gasoline sold to his customers. Assume that the number of litres sold follows the normal distribution with a standard deviation of 8 L. From his records, he selects a random sample of 65 sales and finds the mean number of litres sold is 45. (3 marks) 1) Develop a 80% confidence interval for the population mean. (include...

  • 1) The owner of a local gas station would like to estimate the mean number of...

    1) The owner of a local gas station would like to estimate the mean number of gallons sold to his customers. Assume that the number of gallons sold follow a normal distribution with a population standard deviation 0f 2.5 gallons. He selects a random sample of 100 sales and finds the mean number of gallons sold equals 9.2 What is the point estimate of the population mean? a. 8.2 b. 2.5 c. 100 d. 9 2) The owner of a...

  • Bob Nale is the owner of Nale’s Quick Fill. Bob would like to estimate the mean...

    Bob Nale is the owner of Nale’s Quick Fill. Bob would like to estimate the mean number of gallons of gasoline sold to his customers. Assume the number of gallons sold follows the normal distribution with a population standard deviation of 2.50 gallons. From his records, he selects a random sample of 45 sales and finds the mean number of gallons sold is 8.30. a. What is the point estimate of the population mean? (Round your answer to 2 decimal...

  • Bob Nale is the owner of Nale’s Quick Fill. Bob would like to estimate the mean...

    Bob Nale is the owner of Nale’s Quick Fill. Bob would like to estimate the mean number of gallons of gasoline sold to his customers. Assume the number of gallons sold follows the normal distribution with a population standard deviation of 2.50 gallons. From his records, he selects a random sample of 70 sales and finds the mean number of gallons sold is 7.80. What is the point estimate of the population mean? (Round your answer to 2 decimal places.)...

  • Bob Nale is the owner of Nale’s Quick Fill. Bob would like to estimate the mean...

    Bob Nale is the owner of Nale’s Quick Fill. Bob would like to estimate the mean number of gallons of gasoline sold to his customers. Assume the number of gallons sold follows the normal distribution with a population standard deviation of 2.30 gallons. From his records, he selects a random sample of 70 sales and finds the mean number of gallons sold is 8.40. What is the point estimate of the population mean? (Round your answer to 2 decimal places.)...

  • Bob Nale is the owner of Nale’s Quick Fill. Bob would like to estimate the mean...

    Bob Nale is the owner of Nale’s Quick Fill. Bob would like to estimate the mean number of gallons of gasoline sold to his customers. Assume the number of gallons sold follows the normal distribution with a population standard deviation of 1.90 gallons. From his records, he selects a random sample of 80 sales and finds the mean number of gallons sold is 7.00. a. What is the point estimate of the population mean? (Round your answer to 2 decimal...

  • Bob Nale is the owner of Nale’s Quick Fill. Bob would like to estimate the mean...

    Bob Nale is the owner of Nale’s Quick Fill. Bob would like to estimate the mean number of gallons of gasoline sold to his customers. Assume the number of gallons sold follows the normal distribution with a population standard deviation of 1.80 gallons. From his records, he selects a random sample of 80 sales and finds the mean number of gallons sold is 6.70. A)What is the point estimate of the population mean? (Round your answer to 2 decimal places.)...

  • In a sample of 50 days taken at Piece of Cake Bakery, it was found that...

    In a sample of 50 days taken at Piece of Cake Bakery, it was found that an average of 75 cakes per day were sold. From similar past surveys, the population standard deviation was found to be 25 cakes per day. (a) Determine the standard error of cakes sold per day. (b) Determine the 90% confidence interval for the population mean number of cakes sold per day. (c) If you wanted a wider interval, would you increase or decrease the...

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