Question: A fish-processing company is concerned about the shelf life of its new cat food. A quality manager claims that the mean product shelf life of

A fish-processing company is concerned about the shelf life of its new cat food. A quality manager claims that the mean product shelf life of cans from the Dartmouth facility is less than the advertised mean (of 12 months) for its product's shelf life. Test that claim using the 0.005 level of significance. A sample of 40 items produced in Dartmouth had a mean shelf life of 11 months, and a standard deviation of 1.52 months.

Step by Step Solution

★★★★★

3.32 Rating (170 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Original claim 12 n 30 use z with s for H 0 12 H 1 12 0... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

789-M-S-H-T (4745).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

The owner of a small book-publishing company is concerned about the declining number of people who read books. To learn more about the problem she takes a random sample of customers in a retail book...

A town planning group is concerned about the low usage of a library by its citizens. To determine how the library could increase its patronage, they plan to sample all library-card holders. Comment.

The board of directors of Abco Company is concerned about the downside risk of a $100 million equity portfolio in its pension plan. The boards consultant has proposed temporarily (for 1 month)...

A fish-processing company is concerned about the shelf life of its new cat food. A sample examined in Halifax, Nova Scotia (n = 35) had an acceptable mean shelf life of 13 months, with a standard...

A fish-processing company is concerned about the shelf life of its new cat food. A sample examined in Halifax (n = 35) had an acceptable mean shelf life of 13 months, with a standard deviation of...

Interstate Bakeries Acquisitions, Merger, or Bankruptcy? Our mission is to be the market leader in branded bakery goods, through the efficient production and distribution of high quality products,...

Case Study 2: A Couple of Squares In June 2012, Bernadette Erb, director of Marketing and one of the co-founders/co-owners of A Couple of Squares bakery, sat at their desk, working on the company's...

Need stakeholder analysis, swot analysis and pestle analysis for the below case study- Bella Beverages Inc. 1 Bella Beverages Inc. Overview Bella Beverages Inc. (BB) is a Canadian company traded on...

Find attached Ingredients: Water, MCC, Salt, Nicotine, pH regulator, sweeteners and flavours I am wondering why the decision to go with LYFT. I understand migrating to LYFT would be easier from sells...

Read the case study and answer asap: How does the social mission affect the development of the new venture and its access to resources? Hola, Bandida: Launching A Beverage Brand with Purpose *n...

A jewelry manufacturer has determined the expense equation for necklaces to be E = 1,250q + 800,000, where q is the quantity demanded. At a particular price, the breakeven revenue is $2,600,000. a....

A common application of the sign test deals with analyzing consumer preferences. For instance, suppose that a blind taste test is administered to nine randomly selected convenience store customers....

6. Nielsen Media Research conducted a study of household television viewing times during the 8 p.m. to 11 p.m. time period. The data contained in the CD file named Nielsen are consistent with the...

Approximately 80,000 marriages took place in the state of New York last year. Estimate the probability that for at least one of these couples (a) both partners were born on April 30; (b) both...

The U.S. Mint has a specification that pennies have a mean weight of 2.5 g. Thirty randomly selected pennies have a mean weight of 2.49910 g and a standard deviation of 0.01648 g. Use a 0.05...

In constructing a confidence interval estimate of a population mean or testing a hypothesis about a population mean, why is the t distribution used so much more often than the normal distribution?

The mean time between failures for a Telektronic Company radio used in light aircraft is 420 hours. After 15 new radios were modified in an attempt to improve reliability, tests were conducted to...

13.) Herbert has opened a retirement fund account that pays 7% interest and requires $5,000 annual deposits. Herbert will retire in 40 years and expects 30 years of retirement. What is the maximum...

Your company has been approached to bid on a contract to sell 4,200 voice recognition (VR) computer keyboards a year for four years. Due to technological improvements, beyond that time they will be...

2 . Why would some Jews welcome the occupation under Rom following the defeat of the Seleucids?