In 2000, the mean math SAT score for students at one school was 472. Five years later, in 2005, a teacher performed ahypothesis test to determine whether the average math SAT score of students at the school had changed from the2000 mean of 472.The hypotheses were as follows where u is the mean math SAT score, in 2005, for students at the school.Ho: H = 472Hạ: u # 472A type Il error would occur if, in fact,p = 472, but the results of the sampling do not lead to rejection of that factu # 472, and the results of the sampling lead to that conclusionµ # 472, but the results of the sampling fail to lead to that conclusionp = 472, but the results of the sampling lead to the conclusion that p # 472

Answered: Image /qna-images/answer/c7421845-1f80-4aba-9029-8351bc45f7f6.jpg

Answered: In 2000, the mean math SAT score for…

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

Read through this scenario and look at the data that was collected. State the null and all possible research hypotheses. Review the results below (I used SPSS) and answer the questions that follow. Scenario: A researcher wants to see if gender and / or income affects the total amount of help given to a stranger who is sitting on the side of a busy road with a sign asking for help. The independent variables are gender, income, and the interaction of gender and income. The dependent variable is total help. He wants to know if one or both factors – or the interaction of the two - affects the total amount of help offered. Because he is analyzing two independent variables (gender and income), he used a factorial ANOVA. His results show the main effect of each of the independent variables on the dependent variable (total help) and the interaction effect. The researcher is using a 95% confidence interval which means that he wants to be at least 95% sure that his independent variables…
Question 31 ▼ Nationally, patients who go to the emergency room wait an average of 7 hours to be admitted into the hospital. Do patients at rural hospitals have a lower waiting time? The 13 randomly selected patients who went to the emergency room at rural hospitals waited an average of 4.6 hours to be admitted into the hospital. The standard deviation for these 13 patients was 2.5 hours. What can be concluded at the the a = 0.01 level of significance level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ? Select an answer ✓ H₁: ? Select an answer ✓ c. The test statistic ? ✓ = d. The p-value = e. The p-value is ? a f. Based on this, we should Select an answer the null hypothesis. g. Thus, the final conclusion is that ... (please show your answer to 3 decimal places.) (Please show your answer to 4 decimal places.) O The data suggest that the population mean awaiting time to be admitted into the hospital from the…
It is a 2 part question. How can we find normality?
Question 3 SS = 340.700, s, 1.951,9 12.45 + 6.32x The information above is obtained from a sample of 16 observations taken from a population. Answer the following questions. a) Find the 99% confidence interval for B. b) Can you conclude that B is positive? Use a significance level of 0.025. c) Is B different from zero. Use a significance level of 0.01. d) By using a significance level of 0.02, test whether B is different from 4.50.
Question 18: give the rejection region.
Question 4 The average student loan debt is reported to be 525,235. A student belives that the student loan debt is higher in her area. She takes a random sample of 100 college students in her area and determines the mean to be $27,524 and the standard devition to be $6000. Is there sufficient evidence to support the student claim at a 5% significance level? a) Determine the null and alternative hypotheses. Ho: P H.: µSelect an answer (Put in the correct symbol and value) b) Determine the test statistic. Round to two decimals. t%3D c) Find the p-value, Round to 4 decimals. P-value = d) Make a decision. O Reject the null hypothesis O Fail to reject the null hypothesis e) Write the conclusion. O There is sufficient evidence to support the claim that student loan debt is higher than 525,235, O There is not sufficient evidence to support the claim that student loan debt is higher than S25,235. Submit Question
Question 1 - USE EXCEL OUTPUT a. Whatare the null and alternative hypotheses? b. At a 90% confidence level, what is the value of alpha (ª), c. What is the critical value (CV comes from the Excel outputbelow) d. What is the value of the test statistic (from the Excel outputbelow) e. What is the p-value associated with the sample statistic?(from the Excel outputbelow) f. Compare PV to alpha (include values in comparison) and TS to CV (include values from output in your comparison) g. What is your Decision? (reject/fail to reject Ho)h.What is your conclusion (in everyday terms)
QUESTION 14 For the given significance test, explain the meaning of a Type I error, a Type Il error, or a correct decision as specified. %3D In the past, the mean lifetime of a certain type of radio battery has been 9.8 hours The manufacturer has introduced a change in the production method and wants to perform a significance test to determine whether the mean lifetime has increased as a result. The hypotheses are: Ho:H= 9.8 hours Hau>9.8 hours Explain the meaning of a Type II error. O Concluding that u 9.8 hours Concluding that > 9.8 hours when in fact u> 9.8 hours Concluding that u- 9.8 hours when in fact u> 9.8 hours Concluding that u=9.8 hours when in fact u 9.8 hours when in fact u= 9.8 houfs
please solve question 4.19 attached 4.11 for your reference
Allen's hummingbird has been studied by zoologist Bill Alther. Suppose a small group of 10 Allen's hummingbirds has been under study in Arizona. The average weight for these birds is x=3.15 grams. Based on previous studies, we can assume that the weights of Allen's hummingbirds have a normal distribution, with o=0.36 gram. find an 80% confidence interval for the average weights of Allen's hummingbirds in the study religion. What is the margin of error? (Round your answers to two decimal places) lower limit= upper limit=
QUESTION 4 A report shows that the average cost of tuition and fees at a four-year university is $5,820. A researcher believes the average cost is actually higher than $5,820. She selects a random sample of 46 universities and finds the mean to be $6,100, with standard deviation of $759. a) Formulate the null and alternative hypotheses. b) Is there enough evidence to support the researcher's claim at the 5% level of significance
According to the Community College Research Center at the Teachers College of Columbia University in New York, 32% of community college students work full-time (full-time defined to be a person working 35 or more hours per week). Bryanna believes that this percentage may be higher among BTC students, so she decides to take a survey of BTC students to determine if her hypothesis is correct or not. Correctly identify a Type I error in Bryanna's study. Bryanna will commit a Type I error if she concludes the true proportion of BTC students working full time is equal to 32%, when in fact the true proportion of BTC students working full time is greater than 32%. Answer 1: equal to Answer 2: greater than

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