# The sodium content | Mathematics homework help

The sodium content of thirty 300-gram boxes of organic corn flakes was determined. The data (in milligrams) are as

follows: 131.15, 130.69, 130.91, 129.54, 129.64, 128.77, 130.72,

128.33, 128.24, 129.65, 130.14, 129.29, 128.71, 129.00, 129.39,

130.42, 129.53, 130.12, 129.78, 130.92, 131.15, 130.69, 130.91,

129.54, 129.64, 128.77, 130.72, 128.33, 128.24, and 129.65.

(a) Can you support a claim that mean sodium content of this brand of cornflakes is 130 milligrams? Use α = 0.05.

(b) Is there evidence that sodium content is normally distributed?

(c) Compute the power of the test if the true mean sodium content is 130.5 miligrams.

(d) What sample size would be required to detect a true mean sodium content of 130.1 milligrams if we wanted the power of the test to be at least 0.75?

(e) Explain how the question in part (a) could be answered by constructing a two-sided confidence interval on the mean sodium content.

## Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
\$26
The price is based on these factors:
Number of pages
Urgency
Basic features
• Free title page and bibliography
• Unlimited revisions
• Plagiarism-free guarantee
• Money-back guarantee
On-demand options
• Writer’s samples
• Part-by-part delivery
• Overnight delivery
• Copies of used sources
Paper format
• 275 words per page
• 12 pt Arial/Times New Roman
• Double line spacing
• Any citation style (APA, MLA, Chicago/Turabian, Harvard)

# Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

### Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

### Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

### Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.