Determine whether the results appear to have statistical significance, and also determine whether the results appear tohave practical significance.In a study of a birth sex selection method used to increase the likelihood of a baby being born female, 1926 users of themethod gave birth to 945 males and 981 females. There is about a 21% chance of getting that many babies bornfemale if the method had no effect......Because there is a 21% chance of getting that many babies born female if the method had no effect, the methoddoes not have practical significance.Not many couples would likely use a procedure that raises the likelihood of ababy born female from the approximately 50% rate expected by chance to the % produced by this method.(Round to the nearest integer as needed.)So, this method does not have practical significance.

We see, In a sample of 1926 users, observed that the method gave birth to 945 boys and 981 girls.…

Answered: rth to 945 males and 981 females. There…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

the brand name of a certain chain of coffee shops has a 6% recognition rate in the town of Coffleton. An executive from the company wants to verify the recognition rate as the company is interested in opening a coffee shop in the town. he selects a random sample of 6 Coffleton residents, find the probabilty that the number that recognize the brand name is not 4
A university has 4 different instructors teaching calculus 1. There have been complaints from students that one of the 4 instructors fail too many students and complaints from professors that one instructor gives too many A’s. The table (photo attached below) gives the number of ABC’s each professor gives along with the number of DFW’s. 3 sections for each teacher were randomly selected over the past 5 years for these values. Part 1) Test to see if the percent of students receiving an AB or C is different for the different instructors Part 2) If it is not the same create confidence interval using difference in proportions to find which ones are different from the others. HINT: start with the largest difference in percents first and work your way in. Thank you for your help!!
Aresearcher was interested in the effect of outdoor activity on mood. She hypothesized that people who spend more time doing outdoor activity would experience better mood. She recrulted 10 participants in her study. She had each participanit keep a diary for 7 days. In the diary the partioipants recorded the time they spend daing outdoor activites each day. She also had them rate thetr mood at the same time each day (5 pm) on a 5-pt Likert scale from 1- very bad mood to 5 - very good mood. When the researcher collected the dianies, she added up each person's outdoor activity times for the week (in minutes) and added up each person's mood scores for the week. The data is reported in the lable below. Ourdoor Activity Mood 410 35 375 155 95 30 12 15 175 19 210 26 180 29 110 85 31 18 45 6, Copy or type the data into an Excel spreadsheet. Run the appropriate test to test the hypothesis at the 5% significance level (a = 0.05). On the excel spreadsheet, type your Step 5 answer including the…
Solve last part
in a study done in michigan, it was determined 38 (out of 62) poor children who attended pre-school needed social services later in life compared to 49 (out of 61) poor chidren who did not attend pre-schol. Does this stdy prevoide significant evidence that pre-school reudces the need for social services later in life
A study was conducted on the internet usage of students in a private school. The study wants to determine if the mean internet usage is equal to 3 hours or not. (State the null and alternative hypotheses in words and in symbols)
please do the full problem as it is part of just one!!! please and thx.
2. In a population it is estimated that 20% have a desired trait of interest for the researcher. The researcher wants to know how many people on average he has to draw from a population to get 2 people with the trait. Use rows 20-24 of the Random Number Table to carry out the simulation. Explain clearly how you set up the problem and report your findings. Answer:
Could also you please show how to find Critial Values, Test Statisitc T, and the P value using a Calculator (TI 84) and whether it reject or fail to reject based on the evidence.
Students in an elementary school both boys and girls were asked if they are willing to write a letter to their mother on Mother's Day as an assignment. Out of the 30 boys, only 9 answered "yes" while out of the 45 girls, 39 said that they are willing to write to their mother on Mother's Day. At 99% level of confidence, is there enough evidence to say that the proportion who said "yes" is more for girls than boys? . Но: На: Test Statistic: Test Procedure: Decision Rule: Computation: Decision: Conclusion:
Show all your work Indicate clearly the methods you use, because you will be scored on the correctness of your methods as well as on the accuracy and completeness of your results and explanations. Researchers are studying two populations of sea turtles, In population D. 30 percent of the turties have a shell length greater than 2 feet. In population E. 20 percent of the turtles have a shell length greater than 2 feet. Froma random sample of 40 turtes selected from D.15 had a shell length greater than 2 feet. From a random sample of 60 turtles selected fromE. 11 had a shell length greater than 2 feet. Let pry represent the sample proportion for D, and let p represent the sample proportion for E (a)What is the value of the difference pryPr?Show your work. (b) What are the mean and standard deviation of the sampling distribution of the difference in sample proportions p P:? Show your work and label each value. (c) Can it be assumed that the sampling distribution of the difference of the…
Based on Information from a previous study, r, = 39 people out of a random sample of n, 98 adult Americans who did not attend college belleve in extraterrestrials. However, out of a random sample of n, = 98 adult Americans who did attend college, r, = 46 clatm that they believe in extraterrestrials. Does this Indicate that the proportion of people who attended college and who beleve in extraterrestrials is higher than the proportion who did not attend college? Use a = 0.01. (a) what is the level of ugnificance? state the null and alternate hypotheses. O H, P, = Pzi H P, P2 (b) what sampling distribution will you use? what assumptions are you making? O The standard normal. The number of trials is sufficiently large. O The Student's t. We assume the population distributions are approximately normal. O The Student's t. The number of trials is sufficiently large. O The standard normal. We assume the population distributions are approxlmately normal. What is the value of the sample test…

SEE MORE QUESTIONS

Recommended textbooks for you

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

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

SEE MORE TEXTBOOKS