State whether the standardized test statistic t indicates that you should reject the null hypothesis. Explain.(a) t= -1.668(b) t= 1.566(c) t= 1.653(d) t= - 1.677(a) For t -1.668, should you reject or fail to reject the nullhypothesis?O A. Reject Ho, becauset< -1.621.O B. Fail to reject Ho, because t> 1.621.O C. Reject Ho, because - 1.621

Answered: Image /qna-images/answer/1c60f8a7-aa7d-48af-92e0-e266c706114b.jpg

Answered: (a) For t -1.668, should you reject or…

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

A politician claims that the mean salary for managers in his state is more than the national mean, $83,000. Assume the the population is normally distributed and the population standard deviation is $8900. The salaries (in dollars) for a random sample of 30 managers in the state are listed. At α = 0.09, is there enough evidence to support the claim? Use technology. 72,733 77,504 71,710 86,678 81,200 92,078 92,111 93,702 94,918 D. Ho: μ> 83,000 H₂:μ≤ 83,000 (a) Identify the null hypothesis and alternative hypothesis. A. Ho: μ ≥83,000 Ha: μ 83,000 92,720 87,943 92,455 92,975 95,640 99,029 93,895 83,864 70,547 72,826 85,388 87,528 C. Ho: μ#83,000 Ha: μ = 83,000 F. Ho: μ>83,000 Ha:μ≤83,000 Z= (Round the final answer to two places as needed. Round all intermediate values to three places as needed.) 86,979 91,704 70,712
A well-known brokerage firm executive claimed that at least 90% of investors are currently confident of meeting their investment goals. An XYZ Investor Optimism Survey, conducted over a two week period, found that in a sample of 800 people, 88% of them said they are confident of meeting their goals. For this claim state the null and alternative hypothesis as an expression: H0:μ=0.9HA:μ≠0.9 H0:μ=0.9HA:μ>0.9 H0:p=0.9HA:p<0.9 H0:p=0.9HA:p≠0.9
The results of a hypothesis test are reported as follows: t(18)= 2.25, p < .05. Based on this report, what was the statistical decision and how big was the sample? O The null hypothesis was rejected using a sample of n = 19. The null hypothesis was rejected using a sample of n = 18. The null hypothesis was not rejected using a sample of n = 19. O The null hypothesis was not rejected using a sample of n = 18.
When the following hypotheses are being tested at a level of significance of a Ho: P2 100 H3: HZa O d. > Za/2
find the no. of letter strings of length 11 that contain the letter y exactly 3 times and contain each of the letters mabotok exactity once
Andrew thinks that people living in a rural environment have a healthier lifestyle than other people. He believes the average : 78.6 and lifespan in the USA is 77 years. A random sample of 8 obituaries from newspapers from rural towns in Idaho give a = s = 1.15. Does this sample provide evidence that people living in rural Idaho communities live longer than 77 years? (a) State the null and alternative hypotheses: (Type "mu" for the symbol u , e.g. mu >1 for the mean is greater than 1, mu < 1 for the mean is less than 1, mu not = 1 for the mean is not equal to 1) Но : На: (b) Find the standardized test statistic, t = (c) Answer the question: Does this sample provide evidence that people living in rural Idaho communities live longer than 77 years? (Use a 10% level of significance) (Type: Yes or No)
State whether the standardized test statistic z indicates that you should reject the null hypothesis. (a) z = 2.406 (b) z = 2.292 (c) z = -2.146 (d) z = 2.515 (a) For z = 2.406, should you reject or fail to reject the null hypothesis? A. Fail to reject Ho because z2.330. C. Fail to reject Ho because z>2.330. D. Reject Ho because z 2.330. O B. Fail to reject Ho because z 2.330. O D. Reject Ho because z <2.330. -4 Zo = 2.330 17
Dr. Abba hypothesizes A physician hypothesizes that males have higher systolic blood pressure than females. that students will rate their life satisfaction lower at the completion of a humanities course. To test this hypothesis, he collects life satisfaction ratings for all students in the course at the start of the semester and again at the end of the semester. Below are the data. What can be concluded with an an α of 0.05? start end 82758281918187767582 91848693908887798887 A) Obtain/compute the appropriate values to make a decision about H0. critical value= t statistic= B) If appropriate, compute the CI. If not appropriate, input "na" for both spaces below. C)Compute the corresponding effect size(s) and indicate magnitude(s).If not appropriate, input and/or select "na" below. d= r2=
5. Suppose you are tossing a fair coin to bet. At each time your gain is Xi. The rule is: (0) if you get heads at i-th toss, Xi = 1$; (ii) if you get tails at i-th toss, Xi = -1$. Let Wn = X1+ X2 + .+ Xn with Wo = 0. Note that Wn represents your total wealth after n tosses. Suppose after 100 tosses you have 11$, that is W100 = 11. What is your expected wealth if you do another 100 tosses, that is E[W200|W100 = 11]?
An education researcher claims that 57%of college students work year-round. In a random sample of 300 college students, 171 say they work year-round. At α=0.01, is there enough evidence to reject the researcher's claim? (a) Identify the claim and state H0 and Ha. Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) A. % of college students work year-round. B. At least %of college students work year-round. C. The percentage of college students who work year-round is not %. D. At most %of college students work year-round. (b) State H0 and Ha.Select the correct choice below and fill in the answer boxes to complete your choice. A. H0:p≠Fill Ha:p=Fill B. H0:p≥Fill Ha:p<Fill C. H0:p≤Fill Ha:p>Fill D. H0:p<Fill Ha:p≥fill E. H0:p>fill Ha:p≤fill…
Can you show me the answer to (i)(ii) and (III). Thank you so much for your help
A social psychologist hypothesizes that depression is related to Facebook use. The psychologist collects hours on Facebook and depression score data from a sample of clinically depressed patients. What can be concluded with an α of 0.01? Facebook depression 334543423 4079611125 A) Obtain/compute the appropriate values to make a decision about H0.(Hint: Make sure to write down the null and alternative hypotheses to help solve the problem.) critical value = test statistic = B) Effect size = C) Make an interpretation based on the results. There is a significant positive relationship between using Facebook and depression. There is a significant negative relationship between using Facebook and depression. There is no significant relationship between using Facebook and depression.

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

(a) For t -1.668, should you reject or fail to reject the null hypothesis? O A. Reject Ho, because t< - 1.621. O B. Fail to reject Ho, because t> 1.621. O C. Reject Ho, because -1.621