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Category > Statistics Posted 18 May 2017 My Price 7.00

Construct a 95% confidence interval for the difference in ferulic acid concentration under the two

(Continuation of 6.7.2) Using your work from Exercise 6.7.2(a), fill in the blank:“We are 95% confident

that the difference in population means is at least __________ nmol/g.”

Exercise 6.7.2:

Ferulic acid is a compound that may play a role in disease resistance in corn. A botanist measured the concentration of soluble ferulic acid in corn seedlings grown in the dark or in a light/dark photoperiod.The results (nmol acid per gm tissue) were as shown in the  table.40

(a) Construct a 95% confidence interval for the difference in ferulic acid concentration under the two

lighting conditions. (Assume that the two populations from which the data came are normally distributed.)

[Note: Formula (6.7.1) yields 6 degrees of freedom for these data.]

(b) Repeat part (a) for a 90% level of confidence.

Answers

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Status NEW Posted 18 May 2017 11:05 AM My Price 7.00

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file 1495108370-Answer.docx preview (153 words )
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