The Basic Practice of Statistics
7th Edition
ISBN: 9781464142536
Author: David S. Moore, William I. Notz, Michael A. Fligner
Publisher: W. H. Freeman
expand_more
expand_more
format_list_bulleted
Question
Chapter 25.9, Problem 25.15AYK
a.
To determine
The probabilities specified by the null hypothesis and also the expected counts for each day in 700 births.
b.
To determine
To calculate: The chi square test statistic.
c.
To determine
The degrees of freedom taken by the test statistic.
To conclude: Whether the 700 births give significant evidence that the birth proportions are not equal.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Consider an MA(6) model with θ1 = 0.5, θ2 = −25, θ3 = 0.125, θ4 = −0.0625,
θ5 = 0.03125, and θ6 = −0.015625. Find a much simpler model that has nearly the
same ψ-weights.
Let {Yt} be an AR(2) process of the special form Yt = φ2Yt − 2 + et. Use first principles
to find the range of values of φ2 for which the process is stationary.
Describe the important characteristics of the autocorrelation function for the following
models: (a) MA(1), (b) MA(2), (c) AR(1), (d) AR(2), and (e) ARMA(1,1).
Chapter 25 Solutions
The Basic Practice of Statistics
Ch. 25.1 - Prob. 25.1AYKCh. 25.1 - Prob. 25.2AYKCh. 25.2 - Prob. 25.3AYKCh. 25.2 - Prob. 25.4AYKCh. 25.3 - Prob. 25.5AYKCh. 25.3 - Prob. 25.6AYKCh. 25.6 - Prob. 25.7AYKCh. 25.6 - Prob. 25.8AYKCh. 25.6 - Prob. 25.9AYKCh. 25.7 - Prob. 25.10AYK
Ch. 25.7 - Prob. 25.11AYKCh. 25.8 - Prob. 25.12AYKCh. 25.8 - Prob. 25.13AYKCh. 25.9 - Prob. 25.14AYKCh. 25.9 - Prob. 25.15AYKCh. 25.9 - Prob. 25.16AYKCh. 25.9 - Prob. 25.17AYKCh. 25.9 - Prob. 25.18AYKCh. 25 - Prob. 25.19CYSCh. 25 - Prob. 25.20CYSCh. 25 - Prob. 25.21CYSCh. 25 - Prob. 25.22CYSCh. 25 - Prob. 25.23CYSCh. 25 - Prob. 25.24CYSCh. 25 - Prob. 25.25CYSCh. 25 - Prob. 25.26CYSCh. 25 - Prob. 25.27CYSCh. 25 - Prob. 25.28CYSCh. 25 - Prob. 25.29CYSCh. 25 - Prob. 25.30ECh. 25 - Prob. 25.31ECh. 25 - Prob. 25.32ECh. 25 - Prob. 25.33ECh. 25 - Prob. 25.34ECh. 25 - Prob. 25.35ECh. 25 - Prob. 25.36ECh. 25 - Prob. 25.37ECh. 25 - Prob. 25.38ECh. 25 - Prob. 25.39ECh. 25 - Prob. 25.40ECh. 25 - Prob. 25.41ECh. 25 - Prob. 25.42ECh. 25 - Prob. 25.43ECh. 25 - Prob. 25.44ECh. 25 - Prob. 25.45ECh. 25 - Prob. 25.46ECh. 25 - Prob. 25.47ECh. 25 - Prob. 25.48ECh. 25 - Prob. 25.49ECh. 25 - Prob. 25.50E
Knowledge Booster
Similar questions
- « CENGAGE MINDTAP Quiz: Chapter 38 Assignment: Quiz: Chapter 38 ips Questions ra1kw08h_ch38.15m 13. 14. 15. O Which sentence has modifiers in the correct place? O a. When called, she for a medical emergency responds quickly. b. Without giving away too much of the plot, Helena described the heroine's actions in the film. O c. Nearly the snakebite victim died before the proper antitoxin was injected. . O O 16 16. O 17. 18. O 19. O 20 20. 21 21. 22. 22 DS 23. 23 24. 25. O O Oarrow_forwardQuestions ra1kw08h_ch36.14m 12. 13. 14. 15. 16. Ӧ 17. 18. 19. OS 20. Two separate sentences need Oa. two separate subjects. Ob. two dependent clauses. c. one shared subject.arrow_forwardCustomers experiencing technical difficulty with their Internet cable service may call an 800 number for technical support. It takes the technician between 30 seconds and 11 minutes to resolve the problem. The distribution of this support time follows the uniform distribution. Required: a. What are the values for a and b in minutes? Note: Do not round your intermediate calculations. Round your answers to 1 decimal place. b-1. What is the mean time to resolve the problem? b-2. What is the standard deviation of the time? c. What percent of the problems take more than 5 minutes to resolve? d. Suppose we wish to find the middle 50% of the problem-solving times. What are the end points of these two times?arrow_forward
- Exercise 6-6 (Algo) (LO6-3) The director of admissions at Kinzua University in Nova Scotia estimated the distribution of student admissions for the fall semester on the basis of past experience. Admissions Probability 1,100 0.5 1,400 0.4 1,300 0.1 Click here for the Excel Data File Required: What is the expected number of admissions for the fall semester? Compute the variance and the standard deviation of the number of admissions. Note: Round your standard deviation to 2 decimal places.arrow_forward1. Find the mean of the x-values (x-bar) and the mean of the y-values (y-bar) and write/label each here: 2. Label the second row in the table using proper notation; then, complete the table. In the fifth and sixth columns, show the 'products' of what you're multiplying, as well as the answers. X y x minus x-bar y minus y-bar (x minus x-bar)(y minus y-bar) (x minus x-bar)^2 xy 16 20 34 4-2 5 2 3. Write the sums that represents Sxx and Sxy in the table, at the bottom of their respective columns. 4. Find the slope of the Regression line: bi = (simplify your answer) 5. Find the y-intercept of the Regression line, and then write the equation of the Regression line. Show your work. Then, BOX your final answer. Express your line as "y-hat equals...arrow_forwardApply STATA commands & submit the output for each question only when indicated below i. Generate the log of birthweight and family income of children. Name these new variables Ibwght & Ifaminc. Include the output of this code. ii. Apply the command sum with the detail option to the variable faminc. Note: you should find the 25th percentile value, the 50th percentile and the 75th percentile value of faminc from the output - you will need it to answer the next question Include the output of this code. iii. iv. Use the output from part ii of this question to Generate a variable called "high_faminc" that takes a value 1 if faminc is less than or equal to the 25th percentile, it takes the value 2 if faminc is greater than 25th percentile but less than or equal to the 50th percentile, it takes the value 3 if faminc is greater than 50th percentile but less than or equal to the 75th percentile, it takes the value 4 if faminc is greater than the 75th percentile. Include the outcome of this code…arrow_forward
- solve this on paperarrow_forwardApply STATA commands & submit the output for each question only when indicated below i. Apply the command egen to create a variable called "wyd" which is the rowtotal function on variables bwght & faminc. ii. Apply the list command for the first 10 observations to show that the code in part i worked. Include the outcome of this code iii. Apply the egen command to create a new variable called "bwghtsum" using the sum function on variable bwght by the variable high_faminc (Note: need to apply the bysort' statement) iv. Apply the "by high_faminc" statement to find the V. descriptive statistics of bwght and bwghtsum Include the output of this code. Why is there a difference between the standard deviations of bwght and bwghtsum from part iv of this question?arrow_forwardAccording to a health information website, the distribution of adults’ diastolic blood pressure (in millimeters of mercury, mmHg) can be modeled by a normal distribution with mean 70 mmHg and standard deviation 20 mmHg. b. Above what diastolic pressure would classify someone in the highest 1% of blood pressures? Show all calculations used.arrow_forward
- Write STATA codes which will generate the outcomes in the questions & submit the output for each question only when indicated below i. ii. iii. iv. V. Write a code which will allow STATA to go to your favorite folder to access your files. Load the birthweight1.dta dataset from your favorite folder and save it under a different filename to protect data integrity. Call the new dataset babywt.dta (make sure to use the replace option). Verify that it contains 2,998 observations and 8 variables. Include the output of this code. Are there missing observations for variable(s) for the variables called bwght, faminc, cigs? How would you know? (You may use more than one code to show your answer(s)) Include the output of your code (s). Write the definitions of these variables: bwght, faminc, male, white, motheduc,cigs; which of these variables are categorical? [Hint: use the labels of the variables & the browse command] Who is this dataset about? Who can use this dataset to answer what kind of…arrow_forwardApply STATA commands & submit the output for each question only when indicated below İ. ii. iii. iv. V. Apply the command summarize on variables bwght and faminc. What is the average birthweight of babies and family income of the respondents? Include the output of this code. Apply the tab command on the variable called male. How many of the babies and what share of babies are male? Include the output of this code. Find the summary statistics (i.e. use the sum command) of the variables bwght and faminc if the babies are white. Include the output of this code. Find the summary statistics (i.e. use the sum command) of the variables bwght and faminc if the babies are male but not white. Include the output of this code. Using your answers to previous subparts of this question: What is the difference between the average birthweight of a baby who is male and a baby who is male but not white? What can you say anything about the difference in family income of the babies that are male and male…arrow_forwardA public health researcher is studying the impacts of nudge marketing techniques on shoppers vegetablesarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
MATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons Inc
Probability and Statistics for Engineering and th...StatisticsISBN:9781305251809Author:Jay L. DevorePublisher:Cengage Learning
Statistics for The Behavioral Sciences (MindTap C...StatisticsISBN:9781305504912Author:Frederick J Gravetter, Larry B. WallnauPublisher:Cengage Learning
Elementary Statistics: Picturing the World (7th E...StatisticsISBN:9780134683416Author:Ron Larson, Betsy FarberPublisher:PEARSON
The Basic Practice of StatisticsStatisticsISBN:9781319042578Author:David S. Moore, William I. Notz, Michael A. FlignerPublisher:W. H. Freeman
Introduction to the Practice of StatisticsStatisticsISBN:9781319013387Author:David S. Moore, George P. McCabe, Bruce A. CraigPublisher:W. H. Freeman
MATLAB: An Introduction with Applications
Statistics
ISBN:9781119256830
Author:Amos Gilat
Publisher:John Wiley & Sons Inc
Probability and Statistics for Engineering and th...
Statistics
ISBN:9781305251809
Author:Jay L. Devore
Publisher:Cengage Learning
Statistics for The Behavioral Sciences (MindTap C...
Statistics
ISBN:9781305504912
Author:Frederick J Gravetter, Larry B. Wallnau
Publisher:Cengage Learning
Elementary Statistics: Picturing the World (7th E...
Statistics
ISBN:9780134683416
Author:Ron Larson, Betsy Farber
Publisher:PEARSON
The Basic Practice of Statistics
Statistics
ISBN:9781319042578
Author:David S. Moore, William I. Notz, Michael A. Fligner
Publisher:W. H. Freeman
Introduction to the Practice of Statistics
Statistics
ISBN:9781319013387
Author:David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:W. H. Freeman