# Statistics questions | Mathematics homework help

here is the link to the book we use for help….this is titled chapter 9 quiz in the text book

Get a plagiarism free copy of this essay from our experts
Statistics questions | Mathematics homework help
For as low as \$13/Page

2. true or false: the conclusion you draw from performing the critical-value method for the Z test is the same as the conclusion you draw from performing the p-value method for the Z test.

4. to reject H0 when H0 is true is a Type _____ error.

6. The rejection rule for performing a hypothesis test using the p-value method is to reject H0 when the p-value is less than ______.

8. What does a small p-value indicate with with respect to the null hypothesis? a large p-value?

10. Do you hate paying the extra fees imposed by banks when withdrawing funds from an automated teller machine (ATM) not owned by your bank? The federal reserve system reports that the mean such fee is \$1.14. A random sample of 36 such transactions yielded a mean of \$1.07 in extra fees. Suppose the population standard deviation of such extra fees is \$0.25.

a) Test using level of significance α = 0.05 whether there has been a reduction in the population mean fee charged on such transactions.

b) Which type of error is it possible that we are making, a Type 1 error or a Type 2 error? which type of error are we certain we are not making?

12. The U.S. national center for health statististics reports that, in 2005, the percentage of infants delivered at less than 37 weeks of gestation was 12.7% up from 10.6% in 1990. Has this upward trend continued? A random sample taken this year of 400 births contained 57 preterm births. Test whether the population proportion of preterm births has increased from 12.7%, using the p-value method and level of significance α = 0.05

## 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.