Ashworth Semester Exam MA26S Statistical Analysis I

MA26S : Statistical Analysis I

Question 1

Don't use plagiarized sources. Get Your Custom Essay on
Ashworth Semester Exam MA26S Statistical Analysis I
Just from $13/Page
Order Essay

Is Drug B superior to the currently used Drug A in treating pancreatitis?

Observational

Case-controlled observational

Double blind experiment

Single blind experiment

Question 2

A survey of 100 dog owners showed that the average dog ‘checked the mail’ eleven times during an evening walk. Which question most probably represents the purpose of the study?

How many ‘mail check stops’ can a dog be expected to make on an evening walk?

How many dog owners take dogs for an evening walk?

How many dogs ‘check the mail’ on an evening walk?

How many pet owners have dogs?

Question 3

A bar graph in which the bars are arranged in frequency order is a:

dotplot.

pie chart.

line chart.

pareto chart.

Question 4

Six football players, all defensive linemen, decide that they will gain an average of 10 pounds over the summer. At the start of the season, only five showed up for the weigh-in. They had gained 9, 13, 11, 6, and 7 pounds. How many pounds does the last person have to gain in order that the group can attain its goal?

12 pounds

14 pounds

13 pounds

14.5 points

Question 5

The heights of 10 randomly selected fourth grade boys are (in inches) are 53, 53, 54, 56, 56, 56, 50, 57, 59, and 56. Find the sample standard deviations to 2 decimal places.

2.67

2.54

3.54

2.56

Question 6

Salesmen for the ABC Plastics Company drive an average of 240 miles per day with a standard deviation of 36 miles. If samples of 25 daily mileages are taken, what is the standard deviation of the distribution of sample means?

6.8

7.0

7.1

7.2

Question 7

In 2003, the U.S. death rate was 1.2 per 100,000 people due to motorcycle accidents. Motorcycles in the U.S. were involved in fatal crashes at the rate of 35.0 per 100 million miles driven. If the population of the U.S. is 300,000,000, what is the expected number of deaths due to motorcycle accidents?

3600

10500

1200

11700

Question 8

In one city, there are 1,780 5-year old children of whom 556 live with one parent only. Among a sample of 615 of the 5-year old children from this city, 226 live with one parent only. Find the population proportion of 5-year olds who live with only one parent.

0.35

556

0.37

0.31

Question 9

A manufacturer wishes to test the claim that one of its pancake mixes has a

mean weight that does not equal 24 ounces as advertised. Determine the conclusion of the hypothesis test assuming that the results of the sampling lead to rejection of the null hypothesis.

Conclusion: Support the claim that the mean is greater than 24 ounces.

Conclusion: Support the claim that the mean is not equal to 24 ounces.

Conclusion: Support the claim that the mean is equal to 24 ounces.

Conclusion: Support the claim that the mean is less than 24 ounces.

Question 10

A 95% confidence interval for the mean of a normal population is found to be 17.6 < µ < 23.6. What is the margin of error? 2 2.7 3 4

Place your order
(550 words)

Approximate price: $22

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:
Academic level
Number of pages
Urgency
Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
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.

Read more

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.

Read more

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.

Read more

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Read more

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Read more
Live Chat+1(978) 822-0999EmailWhatsApp