Degrees of freedom are there in determining

Assignment Help Engineering Mathematics

Reference no: EM13823326

1.During a major outbreak of an infectious disease, a team of medical researchers is conducting a medical research project investigating the dynamics of disease transmission through multiple methods. A principal researcher has been working with a portion of the experiment that involves a single contributing factor with five live groups and seven values in each group.

a. How many degrees of freedom are there in determining: the among group variation, the within group variation and the total variation?

b. If the among group of of squares (SSA) is 60 and the total sum of squares(SST) is 210, what is the within group sum of squares(SSW)?

c. What is MSA?

d. What is MSW?

e. What is the value of the test statistic F?

At the .05 level of significance, do all the groups have similar population means?

2.A Carpet manufacturer is studying differences between two of its major outlet stores. Thecompany has decided to revise and imrpove its operations and response time to customer needs and is particularly interested in the time it takes customers to receive carpeting that was ordered from the plant. A sample of 41 delivery times for the most popular type of carpet for the store in Loweel revealed an average delivery time 34.3 days with a standard deviation of 2.4 days. A similar sample of 31 delivery times for the store in Braintree revealed an average of 43.7 days with a standard deviation of 3.1 days. At the .05 level of significance, is there evidence of a difference in variability in the shipping time between the two outlets? What decision should the carpet manufacturer take?

Reference no: EM13823326

Questions Cloud

Question regarding the apportionment problem : You are a census officer in a newly democratic nation and you have been charged with using the census data from the table below to determine how 100 congressional seats should be divided among the 10 states of the union.

Bond investment transactions : Journalize the entries to record the following selected bond investment transactions for Starks Products: For a compound transaction, if an amount box does not require an entry, leave it blank. Purchased for cash $120,000 of Iceline, Inc. 5% bonds at..

Calculate the companys break-even point in units : The B company had the following functional income statement for the month of May 2011. Calculate the company's break-even point in units. Calculate the company's break-even point in sales volume

Indicate the amount received by each type of stockholder : Bradster Corporation has the following preferred and common stock outstanding on December 31, 2009: Assume the Dividend was $50,000 and the Preferred Stock was CUMULATIVE with two years’ preferred dividends in arrears. Indicate the amount received by..

Degrees of freedom are there in determining : How many degrees of freedom are there in determining: the among group variation, the within group variation and the total variation?

Bond issued-equire a debit to interest expense : A $5 million, 20 year, 12% bond issued on May 1, 2011, at face with interest payable on May 1 and Nov. 1 will require a debit to Interest Expense on May 1, 2013, in the amount of:

Determine the patent amortization expense : Isolution Company acquired patent rights on January 4, 2011, for $750,000. The patent has a useful life equal to its legal life of 15 years. On January 7, 2016, Isolution successfully defended the patent in a lawsuit at a cost of $75,000. Determine t..

Ethics awareness inventory and ethical choices : Take the Ethics Awareness Inventory and Ethical Choices in the Workplace assessments to assess your values.

Resistance and ohms law : Resistance and Ohms Law

User Account

All Pages