Can consumer group report in next publication

Assignment Help Basic Statistics

Reference no: EM13124721

A tire manufacturing company advertises that its XL600 tire lasts at least 60,000 miles. From history, the company knows the standard deviation of the tire life is 8,000 miles. A consumer group has noticed more and more complaints about the tire failing at less miles so it decides to conduct a Z test at the .05 level of significance to determine whether the tires last less than 60,000 miles. The consumer group samples 49 of the tires and finds the tires have a mean of life 55,000 miles. Based on the results of the test, can the consumer group report in its next publication that the tires last less than 60,000 miles?

Reference no: EM13124721

Questions Cloud

By how many shares will the assumed exercise : Fully vested incentive stock options exercisable at $40 per share to obtain 28,000 shares of common stock were outstanding during a period when the average market price of the common stock was $50 and the ending market price was $50.

Deductible expenses as business expenses : However, Judy paid him $55,000 rather than $33,000. Judy is on the cash method and calendar year, and she wants to know what amount of these expenditures is deductible as business expenses.

Question regarding algebra-linear operators : Harry and Melissa Jacobson produce handcrafted furniture in a workshop on their farm. They have obtained a load of 600 board feet of birch from a neighbor and are planning to produce round kitchen tables and ladder-back chairs during the next thre..

Illustrate what is the apbo at december : The employee is expected to serve the company for a total of twenty-five years with five of those years already served as of January 1, 2006. Illustrate what is the APBO at December 31, 2006?

Can consumer group report in next publication : Based on the results of the test, can the consumer group report in its next publication that the tires last less than 60,000 miles?

Either explain why f is not linear or write down : Either explain why f is not linear or write down the matrix that represents f . iI general how do you solve problems of this type?

Letter to potential customers on the range of services : Write a four to five (4-5) paragraph form letter to potential customers on the range of services your business or organization can provide. (The business/organization and customer(s) may be "real" or fictitious.)

What volume does the gas occupy : A balloon ?lled with helium gas has a volume of 434 mL at a pressure of 1 atm. The balloon is released and reaches an altitude of 6.5 km, where the pressure is 0.5 atm.

Illustrate what is the balance in retained earnings : Tiffin Company had retained earnings of $50,000 at the end of last year. For the current year, income was $20,000 and dividends $15,000. Illustrate what is the balance in retained earnings at the end of the current year?

User Account

All Pages