The sugar content in a one-cup serving of a certain breakfast cereal was measured for a sample

Question:

The sugar content in a one-cup serving of a certain breakfast cereal was measured for a sample of 140 servings. The average was 11.9 g and the standard deviation was 1.1 g.

a. Find a 95% confidence interval for the mean sugar content.

b. Find a 99% confidence interval for the mean sugar content.

c. What is the confidence level of the interval (11.81, 11.99)?

d. How large a sample is needed so that a 95% confidence interval specifies the mean to within±0.1?

e. How large a sample is needed so that a 99% confidence interval specifies the mean to within±0.1?

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Statistics For Engineers And Scientists

ISBN: 9780073401331

4th Edition

Authors: William Navidi

See More Books

Question Posted: Nov 01, 2018 08:14 AM

See More Questions

Refer to Exercise 11. a. Find a 95% upper confidence bound for the mean sugar content. b. The claim is made that the mean sugar content is greater than 11.7 g.With what level of confidence can this...
The sugar content in grams of three different brands of candy bars is shown. At Î± = 0.05, is there a difference in the number of calories in each type? Brand B 9.2 Brand A 7.6 9.3 Brand...
Consider the sugar content in Exercise 9-44. Suppose that the true variance is 2 = 40. How large a sample would be required to detect this difference with probability at least 0.90?
X = {a,b,c,d. e, f} olmak zere (X.) ksmi sral kmesinin grafii aada verilmitir. (a) (X.) ksmi sral kmesinin maksimal, minimal, minimum ve maksimum elemanlarn belirtiniz. (b) (X.) kismi sral kmesinin Y...
Mitch Hopkins owns the Happy Valley Drug Store, which has prospered during its second year of operation. To help Hopkins decide whether to open another pharmacy in the area, his bookkeeper has...
Use the compound interest formula A=P(1+r)to the not to complete this problem. If you invest $1800 in an account that pays an annual percentage rate( APR) of 2.16 and the interest is compounded...
Prepare journal entries to record each of the following purchases transactions of a merchandising^ QS 5-3 company. Show supporting calculations and assume a perpetual inventory system. Nov. 5...
The International Bank of Commerce (IBC) is an audit client of your public accounting firm. IBC is a multinational financial institution that operates in 23 countries. During the current years audit,...
Please Answer both questions 22 On January 1, Year 2, Carleton Corporation had 54,000 shares of $9 par value common stock outstanding. On March 31, Year 2, Carleton issued an additional 17,000 shares...
Millennium Liquors is a wholesaler of sparkling wines. Their most popular product is the French Bete Noire. Weekly demand is for 45 cases. Assume demand occurs over 50 weeks per year. The wine is...
The article The Prevalence of Daytime Napping and Its Relationship to Nighttime Sleep (J. Pilcher, K. Michalkowski, and R. Carrigan), Behavioral Medicine, 2001:7176) presents results of a study of...
Refer to Exercise 7. a. Find a 95% lower confidence bound for the mean capacity of this type of battery. b. An engineer claims that the mean capacity is greater than 175 ampere-hours. With what level...
Dan lives in Duncan, a small town in Arizona. Because of a rare blood disease, Dan is required to take special medical treatments once a month. The closest place these treatments are available to Dan...
Find the expected value of buying the extended warranty. The expected value of buying the extended warranty is . A new flat - screen TV comes with a 1 - year warranty wh ich completely covers any...
An Olympic runner is coming to visit your school. You have been told that a world class race has two stages. In the first stage, the runner accelerates at a constant rate until he reaches maximum...
Question 3(15 marks) An investor holds 100,000 units of a bond whose features per bond are summarized in the following table. She wishes to be hedged against a rise in interest rates. Maturity Coupon...
12. In a professional cycling race, competitors (the "peloton") begin the race by riding 45.0 km north, then the road turns west by 37 for the next 50.0 km, before turning due west for the final 35.0...
Whateva Ltd uses a flexible budget and standard costs to aid planning and control of its machining manufacturing operations. The costing system for manufacturing has two direct cost categories...
For most companies, what two types of transactions make up the largest percent of their current liabilities?
Presented below are income statements prepared on a LIFO and FIFO basis for Kenseth Company, which started operations on January 1, 2024. The company presently uses the LIFO method of pricing its...
A random sample of size 8 is taken from a Exp() distribution, where is unknown. The sample values are 2.74, 6.41, 4.96, 1.65, 6.38, 0.19, 0.52, and 8.38. This exercise shows how to use the bootstrap...
Of customers ordering a certain type of personal computer, 20% order an upgraded graphics card, 30% order extra memory, 15% order both the upgraded graphics card and extra memory, and 35% order...
Let X U(a, b). Use the definition of the mean of a continuous random variable (Equation 2.35) to show that X = (a + b)/2.
Suppose you took a long position on a put option with an exercise price of $2.15 per pound and paid a premium of $0.24 per pound. Required: If the spot exchange rate turns out to be $2.30 per pound...
Youve observed the following returns on Crash-n-Burn Computers stock over the past five years: 15 percent, 6 percent, 18 percent, 14 percent, and 10 percent. Suppose the average inflation rate over...
Required : a- outline the statement of comperhensive income for the year ended 30 november 2021 b- outline the statment of financial position as at 30 November The Trial Balance of Alim Enterprise at...

The sugar content in a one-cup serving of a certain breakfast cereal was measured for a sample

Question:

Step by Step Answer:

a X 119 s 11 n 140 z 025 196 The confidence interval is 119 19611140 or 11718 12082 b X 119 s ...View the full answer

Statistics For Engineers And Scientists

Students also viewed these Mathematics questions