Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 28 Jan 2018 My Price 9.00

Effect of storage time

7.75    Effect of storage time on vitamin C content. Does bread lose its vitamins when stored? Small loaves of bread were prepared with flour that was fortified with a fixed amount of vitamins. After baking, the vitamin C content of two loaves was measured. Another two loaves were baked at the same time, stored for three days, and then the vitamin C content was measured. The units are milligrams per hundred grams of flour (mg/100 g).28 Here are the data:

 

Immediately after baking:

47.62

49.79

Three days after baking:

21.25

22.34

 

 

(a)  When bread is stored, does it lose vitamin  C? To answer this question, perform a two-sample t test for these data. Be sure to state your hypotheses,

 

the test statistic with degrees of freedom, and the

P-value.

(b)   Give a 90% confidence interval for the amount of vitamin C lost.

 

Answers

Maurice Tutor
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Status NEW Posted 28 Jan 2018 11:01 PM My Price 9.00

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