Answers only (statistics) | Mathematics homework help

Don't use plagiarized sources. Get Your Assignment on
Answers only (statistics) | Mathematics homework help
Just from $13/Page
Order Now

See attachment: 

74. Perform a goodness-of-fit test to determine whether the local results follow the distribution of the U.S. overall student population based on ethnicity

Race/Ethnicity                    AP Population       Overall Student Population                 Survey Frequency

Asian, Asian American          10.2%                          5.4%                                                         113

Black or African-American     8.2%                          14.5%                                                         94

Hispanic or Latino                  15.5%                         15.9%                                                        136

American Indian                     0.6%                            1.2%                                                          10

White                                       59.4%                         61.6%                                                        604

Not reported/other               6.1%                              1.4%                                                        43

 

 102. Do men and women select different breakfasts? The breakfasts ordered by randomly selected men and women at a popular breakfast place is shown in Table 11.55. Conduct a test for homogeneity at a 5% level of significance               

                 French Toast                    Pancakes                      Waffles                           Omelettes

Men                     47                                35                                 28                                      53

Women              65                                 59                                55                                         b 60

 

 

114. chi-square test statistic = ________  (look below)

116. Graph the situation. Label and scale the horizontal axis. Mark the mean and test statistic. Shade the p-value

 

Suppose an airline claims that its flights are consistently on time with an average delay of at most 15 minutes. It claims that the average delay is so consistent that the variance is no more than 150 minutes. Doubting the consistency part of the claim, a disgruntled traveler calculates the delays for his next 25 flights. The average delay for those 25 flights is 22 minutes with a standard deviation of 15 minutes.

 

76. The following table shows data on average per capita wine consumption and heart disease rate in a random sample of 10 countries.

 

 

Yearly wine consumption in liters    2.5     3.9        2.9        2.4        2.9         0.8      9.1          2.7      0.8        0.7

Death from heart diseases                221    167        131       191      220        297     71         172     211     300

a. Enter the data into your calculator and make a scatter plot.

b. Use your calculator’s regression function to find the equation of the least-squares regression line. Add this to your scatter plot from part a.

c. Explain in words what the slope and y-intercept of the regression line tell us.

d. How well does the regression line fit the data? Explain your response.

e. Which point has the largest residual? Explain what the residual means in context. Is this point an outlier? An influential point? Explain.

f. Do the data provide convincing evidence that there is a linear relationship between the amount of alcohol consumed and the heart disease death rate? Carry out an appropriate test at a significance level of 0.05 to help answer this question.

 

82.

Size (ounces)                Cost ($)                 Cost per ounce

16                                   3.99

32                                      4.99

64                                    5.99

200                                  10.99

a. Using “size” as the independent variable and “cost” as the dependent variable, draw a scatter plot.

b. Does it appear from inspection that there is a relationship between the variables? Why or why not?

c. Calculate the least-squares line. Put the equation in the form of: ŷ = a + bx

d. Find the correlation coefficient. Is it significant?

e. If the laundry detergent were sold in a 40-ounce size, find the estimated cost.

f. If the laundry detergent were sold in a 90-ounce size, find the estimated cost.

g. Does it appear that a line is the best way to fit the data? Why or why not?

h. Are there any outliers in the given data?

i. Is the least-squares line valid for predicting what a 300-ounce size of the laundry detergent would you cost? Why or why not?

j. What is the slope of the least-squares (best-fit) line? Interpret the slope.

 

 

Calculate your paper price
Pages (550 words)
Approximate price: -

Why Choose Us

Quality Papers

At Myhomeworkwriters.com, we always aim at 100% customer satisfaction. As such, we never compromise o the quality of our homework services. Our homework helpers ensure that they craft each paper carefully to match the requirements of the instruction form.

Professional Academic Writers

With Myhomeworkwriters.com, every student is guaranteed high-quality, professionally written papers. We ensure that we hire individuals with high academic qualifications who can maintain our quality policy. These writers undergo further training to sharpen their writing skills, making them more competent in writing academic papers.

Affordable Prices

Our company maintains a fair pricing system for all academic writing services to ensure affordability. Our pricing system generates quotations based on the properties of individual papers.

On-Time delivery

My Homework Writers guarantees all students of swift delivery of papers. We understand that time is an essential factor in the academic world. Therefore, we ensure that we deliver the paper on or before the agreed date to give students ample time for reviewing.

100% Originality

Myhomeworkwriters.com maintains a zero-plagiarism policy in all papers. As such, My Homework Writers professional academic writers ensure that they use the students’ instructions to deliver plagiarism-free papers. We are very keen on avoiding any chance of similarities with previous papers.

Customer Support 24/7

Our customer support works around the clock to provide students with assistance or guidance at any time of the day. Students can always communicate with us through our live chat system or our email and receive instant responses. Feel free to contact us via the Chat window or support email: support@myhomeworkwriters.com.

Try it now!

Calculate the price of your order

You will get a personal manager and a discount.
We'll send you the first draft for approval by at
Total price:
$0.00

How it works?

Follow these simple steps to get your paper done

Place your order

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

Once your paper is ready, we will email it to you.

Our Samples

Our writers complete papers strictly according to your instructions and needs, no matter what university, college, or high school you study in.

Categories
All samples
Analysis (any type)
Argumentative essays
Dissertation/Dissertation chapter
Analysis (any type)
Advantages and disadvantages of lowering the voting age to thirteen
Undergrad. (yrs 1-2)
Political science
4
View this sample
Argumentative essays
Is euthanasia ethical or not?
Undergrad. (yrs 3-4)
Nursing
3
View this sample
Dissertation/Dissertation chapter
Videoconferencing as a teaching tool
Undergrad. (yrs 3-4)
Education
10
View this sample

Our Homework Writing Services

My Homework Writers holds a reputation for being a platform that provides high-quality homework writing services. All you need to do is provide us with all the necessary requirements of the paper and wait for quality results.

Essays

Essay Writing Services

At My Homework Writers, we have highly qualified academic gurus who will offer great assistance towards completing your essays. Our homework writing service providers are well-versed with all the aspects of developing high-quality and relevant essays.

Admissions

Admission and Business Papers

With Myhomeworkwriters.com, we will help you secure a position at your desired institution. Our essay writing services include the crafting of admissions papers. We will still help you climb your career ladder by helping you write the official papers that will help you secure a job. We will guide you on how to write an outstanding portfolio or resume.

Editing

Editing and Proofreading

Myhomeworkwriters.com has a professional editorial team that will help you organize your paper, paraphrase it, and eliminate any possible mistakes. Also, we will help you check on plagiarism to ensure that your final paper posses quality and originality.

Coursework

Technical papers

My Homework Writers harbors professional academic writers from diverse academic disciplines. As such, we can develop homework writing services in all academic areas. The simplicity or complexity of the paper does not affect the quality of homework writing services.

Sitemap: https://myhomeworkwriters.com/sitemaps/sitemap.xml User-agent: * Allow: / User-agent: AhrefsBot Crawl-Delay: 1 User-agent: SemrushBot Crawl-Delay: 1