3. Sodium content in organic cornflakes depends on fertilization method. A new fertilization method has been developed. The following data of sodium content (in milligrams) issued from the new method of fertilization were obtained from a sample of ten 300-grams organic cornflakes boxes: | 130.72 | 128.33 | 128.24 | 129.65 | 130.14| | 129.29 | 128.71 | 129.00 128.77 129.64 Assume the sodium content is normally distributed. Construct a 95% confidence interval of the mean sodium content. Construct a 99% confidence interval of the variance of sodium content. From the result in part (b. ii.), could you conclude that the variance equals 1? Verify your 111. answer.
3. Sodium content in organic cornflakes depends on fertilization method. A new fertilization method has been developed. The following data of sodium content (in milligrams) issued from the new method of fertilization were obtained from a sample of ten 300-grams organic cornflakes boxes: | 130.72 | 128.33 | 128.24 | 129.65 | 130.14| | 129.29 | 128.71 | 129.00 128.77 129.64 Assume the sodium content is normally distributed. Construct a 95% confidence interval of the mean sodium content. Construct a 99% confidence interval of the variance of sodium content. From the result in part (b. ii.), could you conclude that the variance equals 1? Verify your 111. answer.
MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Transcribed Image Text:3. Sodium content in organic cornflakes depends on fertilization method. A new fertilization
method has been developed. The following data of sodium content (in milligrams) issued
from the new method of fertilization were obtained from a sample of ten 300-grams organic
cornflakes boxes:
130.72 128.33 128.24 | 129.65 | 130.14
129.29 128.71 129.00 128.77 129.64
Assume the sodium content is normally distributed.
i. Construct a 95% confidence interval of the mean sodium content.
Construct a 99% confidence interval of the variance of sodium content.
11.
From the result in part (b. ii.), could you conclude that the variance equals 1? Verify your
111.
answer.
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