Is it reasonable to pool the variances

Assignment Help Basic Statistics

Reference no: EM131430614

Does the type of cooking pot affect iron content? Iron-deficiency anemia is the most common form of malnutrition in developing countries, affecting about 50% of children and women and 25% of men. Iron pots for cooking foods had traditionally been used in many of these countries, but they have been largely replaced by aluminum pots, which are cheaper and lighter.

Some research has suggested that food cooked in iron pots will contain more iron than food cooked in other types of pots. One study designed to investigate this issue compared the iron content of some Ethiopian foods cooked in aluminum, clay, and iron pots.17 One of the foods was yesiga wet', beef cut into small pieces and prepared with several Ethiopian spices. The iron content of four samples of yesiga wet' cooked in each of the three types of pots follows. The units are milligrams of iron per 100 grams of cooked food.

694_Tab 8.jpg

(a) Make a table giving the sample size, mean, and standard deviation for each type of pot. Is it reasonable to pool the variances? Note that with the small sample sizes in this experiment, we expect a large amount of variability in the sample standard deviations.

(b) Run the analysis of variance. Report the F statistic with its degrees of freedom and P-value. What do you conclude?

Reference no: EM131430614

Questions Cloud

Is it reasonable to pool the variances : Make a table giving the sample size, mean, and standard deviation for each group of rats. Is it reasonable to pool the variances?

What are several of the business environment threats to pot : Identify their core strategy elementsx (four P's). What are several of the business environment threats to Pot Belly? How might they overcome these

Determine which pairs of means differ significantly : Use the Bonferroni or another multiple-comparisons procedure to determine which pairs of means differ significantly. Summarize your results in a short report. Be sure to include a graph.

How will you follow-up with your investor : What other items would you place in your presentation to help close the deal? Why? How will you follow-up with your investor after the presentation? What are the benefits of a follow-up

Is it reasonable to pool the variances : Make a table giving the sample size, mean, and standard deviation for each type of pot. Is it reasonable to pool the variances?

What could have been done better or more concisely : What are some particular things about this website that you admire? The color scheme is appealing without being overwhelming. The blue headings provide consistency. The use of Sans Serif font gives the page a clean look. The white space is good - ..

Determine nature of globalization cultures and labor markets : Analyze international business strategy to identify human resource requirements. Determine the nature of globalization, cultures, and labor markets, and assess the impact on human resource management (HRM).

Can the effects of a marketing campaign enhance the sales : Can the effects of a marketing campaign enhance the sales figures of the company it is representing? For example, can the campaign highlight falling sales and in which area

Assess the types of personality measurements : Assess the types of personality measurements and research designs used in in the peer-reviewed articles you researched. Briefly describe the main theoretical models represented within each of the perspectives of personality and explain the commona..

User Account

All Pages