Page 3 of 3 2. How long should an infant be breast-fed? Recommendations regarding how long infants in developing countries should be breast-fed are controversial. If the nutritional quality of the breast milk is inadequate because the mothers are malnourished, then there is risk of inadequate nutrition for the infant. On the other hand, the introduction of other foods carries the risk of infection from contamination. Further complicating the situation is the fact that companies that produce infant formulas and other foods benefit when these foods are consumed by large numbers of customers. One question related to this controversy concerns the amount of energy intake for infants who have other foods introduced into the diet at different ages. Part of one study compared the energy intakes, measured in kilocalories per day (kcal/d), for infants who were breast-fed exclusively for 4, 5, or 6 months. Here are the data: Breast-fed for: 4 months 5 months 6 months Energy intake (kcal/d) 499 620 469 485 660 588 675 517 649 209 404 738 628 609 617 704 558 653 548 Between Groups Within Groups Total 490 395 402 177 475 617 616 587 528 518 370 431 518 639 368 538 519 506 585 647 477 445 485 703 528 465 a) Perform ANOVA with SPSS and fill out the following table Sum of Square df mean Square F Sig Table 1: ANOVA Run the analysis of variance. Report the F statistic with its degrees of freedom and P-value. What do you conclude?
Page 3 of 3 2. How long should an infant be breast-fed? Recommendations regarding how long infants in developing countries should be breast-fed are controversial. If the nutritional quality of the breast milk is inadequate because the mothers are malnourished, then there is risk of inadequate nutrition for the infant. On the other hand, the introduction of other foods carries the risk of infection from contamination. Further complicating the situation is the fact that companies that produce infant formulas and other foods benefit when these foods are consumed by large numbers of customers. One question related to this controversy concerns the amount of energy intake for infants who have other foods introduced into the diet at different ages. Part of one study compared the energy intakes, measured in kilocalories per day (kcal/d), for infants who were breast-fed exclusively for 4, 5, or 6 months. Here are the data: Breast-fed for: 4 months 5 months 6 months Energy intake (kcal/d) 499 620 469 485 660 588 675 517 649 209 404 738 628 609 617 704 558 653 548 Between Groups Within Groups Total 490 395 402 177 475 617 616 587 528 518 370 431 518 639 368 538 519 506 585 647 477 445 485 703 528 465 a) Perform ANOVA with SPSS and fill out the following table Sum of Square df mean Square F Sig Table 1: ANOVA Run the analysis of variance. Report the F statistic with its degrees of freedom and P-value. What do you conclude?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Page 3 of 3
2. How long should an infant be breast-fed? Recommendations regarding how long infants in
developing countries should be breast-fed are controversial. If the nutritional quality of the
breast milk is inadequate because the mothers are malnourished, then there is risk of inadequate
nutrition for the infant. On the other hand, the introduction of other foods carries the risk of
infection from contamination. Further complicating the situation is the fact that companies
that produce infant formulas and other foods benefit when these foods are consumed by large
numbers of customers. One question related to this controversy concerns the amount of energy
intake for infants who have other foods introduced into the diet at different ages. Part of one
study compared the energy intakes, measured in kilocalories per day (kcal/d), for infants who
were breast-fed exclusively for 4, 5, or 6 months. Here are the data:
Breast-fed for:
4 months
5 months
6 months
Energy intake (kcal/d)
499 620 469 485 660 588 675
517 649 209 404 738 628 609
617 704 558 653 548
Between Groups
Within Groups
Total
490 395 402 177 475 617 616
587 528 518 370 431 518 639
368 538 519 506
585 647 477 445 485 703 528
465
a) Perform ANOVA with SPSS and fill out the following table
Sum of Square df mean Square F Sig
Table 1: ANOVA
Run the analysis of variance. Report the F statistic with its degrees of freedom and P-value.
What do you conclude?
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