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derived from the test to survey of 258 student drivers and their attitudes toward speeding and reported the results in the British Journal of Educational Psychology (Vol. 80, 2010). One of the vari- ables of interest was the response to the question, “Are you confident that you can resist your friends' persuasion to drive faster?" Each response was measured on a 7-point scale, from 1 = “definitely no" to 7 = “definitely yes.“ The data were collected 5 months after the students had attended a safe-driver presentation. The psychologists re- ported a sample mean response of 4.98 and a sample stan- dard deviation of 1.62. Suppose it is known that the true mean response of students who do not attend a safe-driver, presentation is µ a. Set up the null and alternative hypotheses for test- ing whether the true mean student-driver response 5 months after a safe-driver presentation is larger E.38 Speeding and young drivers. Psychologists cond = 4.7. %3D than 4.7. b. Calculate the test statistic for the hypothesis test. uC. Find the rejection region for the hypothesis test, using a = .05. d. State the appropriate conclusion, in the words of the %3D bon problem. e. Do the test results indicate that the safe-driver presen- tation was effective in helping students feel more con- fident that they can resist their friends' persuasion to drive faster? Explain. distribution of rest

derived from the test to survey of 258 student drivers and their attitudes toward speeding and reported the results in the British Journal of Educational Psychology (Vol. 80, 2010). One of the vari- ables of interest was the response to the question, “Are you confident that you can resist your friends' persuasion to drive faster?" Each response was measured on a 7-point scale, from 1 = “definitely no" to 7 = “definitely yes.“ The data were collected 5 months after the students had attended a safe-driver presentation. The psychologists re- ported a sample mean response of 4.98 and a sample stan- dard deviation of 1.62. Suppose it is known that the true mean response of students who do not attend a safe-driver, presentation is µ a. Set up the null and alternative hypotheses for test- ing whether the true mean student-driver response 5 months after a safe-driver presentation is larger E.38 Speeding and young drivers. Psychologists cond = 4.7. %3D than 4.7. b. Calculate the test statistic for the hypothesis test. uC. Find the rejection region for the hypothesis test, using a = .05. d. State the appropriate conclusion, in the words of the %3D bon problem. e. Do the test results indicate that the safe-driver presen- tation was effective in helping students feel more con- fident that they can resist their friends' persuasion to drive faster? Explain. distribution of rest

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Please answer all parts except f

derived from the test to be b. Calculate the test statistic for the hypothesis test. slug C. Find the rejection region for the hypothesis test, using boroubno for all student drivers is unlikely to be normal. Does d. State the appropriate conclusion, in the words of the e. Do the test results indicate that the safe-driver presen- f. The distribution of response scores (on a 7-point scale) tation was effective in helping students feel more con- this impact the validity of the hypothesis test? Why or 66 ables of interest was the response to the question, "Are you confident that you can resist vour friends' persuasion to drive faster?" Each response was measured on a 7-point scale, from 1 = “definitely no" to 7 = "definitely yes. The data were collected 5 months after the students had attended a safe-driver presentation. The psychologists re- ported a sample mean response of 4.98 and a sample stan- dard deviation of 1.62. Suppose it is known that the true mean response of students who do not attend a safe-driver Apresentation is µ = 4.7. %3D %3D ered int %3D -1,29 a. Set up the null and alternative hypotheses for test- Sihliel thesis a LOS ing whether the true mean student-driver response 5. months after a safe-driver presentation is larger than 4.7. e Find the rejection region for the hypothesis test, using bmu- mol a = .05. %3D problem. .20. tation was effective in helping students feel more con- Gident that they can resist their friends’ persuasion to le sia drive faster? Explain. o distribution of response scores (on a 7-point scale) ismator why not? here
Transcribed Image Text:derived from the test to be b. Calculate the test statistic for the hypothesis test. slug C. Find the rejection region for the hypothesis test, using boroubno for all student drivers is unlikely to be normal. Does d. State the appropriate conclusion, in the words of the e. Do the test results indicate that the safe-driver presen- f. The distribution of response scores (on a 7-point scale) tation was effective in helping students feel more con- this impact the validity of the hypothesis test? Why or 66 ables of interest was the response to the question, "Are you confident that you can resist vour friends' persuasion to drive faster?" Each response was measured on a 7-point scale, from 1 = “definitely no" to 7 = "definitely yes. The data were collected 5 months after the students had attended a safe-driver presentation. The psychologists re- ported a sample mean response of 4.98 and a sample stan- dard deviation of 1.62. Suppose it is known that the true mean response of students who do not attend a safe-driver Apresentation is µ = 4.7. %3D %3D ered int %3D -1,29 a. Set up the null and alternative hypotheses for test- Sihliel thesis a LOS ing whether the true mean student-driver response 5. months after a safe-driver presentation is larger than 4.7. e Find the rejection region for the hypothesis test, using bmu- mol a = .05. %3D problem. .20. tation was effective in helping students feel more con- Gident that they can resist their friends’ persuasion to le sia drive faster? Explain. o distribution of response scores (on a 7-point scale) ismator why not? here
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