In a sample of 351 gamers between the ages of 16-25, the mean number of hours spent gaming per week was 42.5hours. In a sample of 269 gamers between the ages of 26-40, the mean number of hours spent gaming per week was43.8 hours. If the population standard deviation for the mean number of hours spent gaming per week is 9.5 for the agegroup 16-25 and 10.7 for the age group 26-40, test the claim that gamers between the ages of 16-25 spend less timegaming per week than gamers between the ages of 26-40. Assume a = 0.03.Let population 1 be gamers in the age group 16-25 and population 2 be gamers in the age group 26-40.Round the test statistic to two decimal places, and round the p-value to four decimal places.The test statistic isThe p-value isShould the null hypothesis be rejected?[Type "yes" if it should be rejected and "no" if it should not be rejected.]

here from given information for gamer in age- group 16-25 x1¯ = 42.5 σ1 = 9.5 n1 = 351 for gamer…

Answered: The test statistic is The p-value is…

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

Do the needs of patients in the emergency room differ for those who come by car vs. those by ambulance? of the randomly selected emergency room patients who came by car 69 had an injury, 58 were sick, 40 had heart problems and 52 had other needs. Of the randomly selected emergency room patients who came by ambulance 47 had an injury, 22 were sick, 44 had heart problems and 35 had other needs. Conduct the appropriate hypothesis test using an a = 0.10 level of significance. a. What is the correct statistical test to use? O Homogeneity Paired t-test O Independence O Goodness-of-Fit b. What are the null and alternative hypotheses? Họ: O The distribution of emergency room needs for patients who come by car is not the same as it is for patients who come by ambulance. O Means of transportation to the emergency room and emergency room needs are independent. O Means of transportation to the emergency room and emergency room needs are dependent. O The distribution of emergency room needs for…
A new drug to treat a certain condition is being tested. The null hypothesis of the test is that the drug is not effective. For the researchers, the more consequential error would be for the drug to be effective, but the test does not detect the effect. Which of the following should the researchers do to avoid the more consequential error? Increase the significance level to increase the probability of Type II error. A Increase the significance level to decrease the probability of Type II error. B Decrease the significance level to increase the probability of Type II error. C Decrease the significance level to decrease the probability of Type II error. D Decrease the significance level to decrease the standard error.
Suppose your marketing department feels like 36% of customers prefer a certain feature for a product.But you suspect that it is much less than this.To test your hypothesis you send surveys to a group of customers. You get 360 responses and of those only 30% say they prefer the feature.Suppose you want to test your hypothesis with a level of significance of .01 (1%). What is your conclusion? a) What is the null hypothesis? b) What is the alternative hypothesis? c) What is the claimed population proportion? d) What is the sample proportion (called the test statistic) e) What is the std deviation f) What is the z-value of the test statistic? g) What is the p-value h) compare your p-value to the level of significance i) What is the conclusion in words
Assume a Chi-square test statistic is such that you reject the null hypothesis at a significance level a;. You will also reject it at any significance level smaller than this α;. True False
The table below includes results from polygraph (lie detector) experiments conducted by researchers. In each case, it was known if the subjected lied or did not lie, so the table indicates when the polygraph test was correct. Use a 0.05 significance level to test the claim that whether a subject lies is independent of the polygraph test indication. Do the results suggest that polygraphs are effective in distinguishing between truth and lies? Click the icon to view the table. Determine the null and alternative hypotheses. More Info O A. Ho: Whether a subject lies is not independent of t H1: Whether a subject lies is independent of the p B. Ho: Polygraph testing is not accurate. H4: Polygraph testing is accurate. Did the Subject Actually Lie? No (Did Not Lie) Yes (Lied) C. Ho: Whether a subject lies is independent of the p H,: Whether a subject lies is not independent of t Polygraph test indicated that the subject lied. Polygraph test indicated that the subject did not lie. 19 44 8. 12…
If, in a (two-tail) hypothesis test, the p-value is 0.0921, what is your statistical decision if you test the null hypothesis at the 0.06 level of significance?
provide an example of hypothesis testing using the t score test
28% of students at a university bought lunch from the cafeteria on class days. On a recent class day, 486 students from this university were sampled and 149 of these had bought lunch from the school cafeteria. Use the appropriate formula to determine the test statistics (z-score) that can be used in a hypothesis test. (Do not preform the hypothesis test. No significance level is given, since you are NOT asked to do a complete test.)
If the decision in a hypothesis test said to reject Ho, then we can always make a conclusion that the sample data supports the claim. True False
I would like to test the claim that the mean IQ of statistics teachers is greater than 120. Identify the type 1 and type 2 errors for the hypothesis test of this claim. What do the errors mean?
It is more difficult to reject a null hypothesis if we use a 10% level of significance compared with a 5% level of significance. True or False
-In a recent Gallup poll of 511 adults, 64% said that they were in favor of death penalty for a person convicted of murder. We want to use a 0.01 significance level to test the claim that the majority of adults are in favor of the death penalty for a person convicted of murder. a) Identify the null and alternative hypothesis. b) Find the value of the test statistic. c) Determine what we should conclude about the original claim.

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

The test statistic is The p-value is Should the null hypothesis be rejected?