State whether the standardized test statistic tindicates that you should reject the null hypothesis.Explain.(a) t= 1.713(b) t=0(c) t= 1.666(d) t= -1.724to-1.681(a) For t= 1.713, should you reject or fail to reject the null hypothesis?O A. Fail to reject Ho, because t< -1.681.OB. Fail to reject Ho, because t> -1.681.OC. Reject Ho, because t< -1.681.OD. Reject Ho, because t> -1.681.G

It is given that the t critical value for left-tailed t test is t0 = -1.681.

Answered: (a) For t= 1.713, 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

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If the critical t is ±1.796 and the obtained t is -2.09, what decision would you make regarding the null hypothesis?
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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=
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(d) Use a t-test to test if the relationship between years of experience and income is statistically significant at the 0.05 level of significance. State the null and alternative hypotheses. O Ho: B₁ ≥ 0 H₂: B₁< < 0 Ho: B₁ = 0 Ha: B₁ * 0 O Ho: B₁ * 0 Ha: B₁ = 0 о ново = 0 Ha: Bo # 0 Ho Bo # 0 Ha: Bo Find the value of the test statistic for the t-test. (Round your answer to three decimal places.) = = 0 Find the p-value. (Round your answer to four decimal places.) p-value What is your conclusion? O Reject Ho. We conclude that the relationship between years of experience and income is significant. O Do not reject Ho. We cannot conclude that the relationship between years of experience and income is significant. O Reject Ho. We cannot conclude that the relationship between years of experience and income is significant. O Do not reject Ho. We conclude that the relationship between years of experience and income is significant. (e) Calculate the coefficient of determination. (Round your…

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(a) For t= 1.713, should you reject or fail to reject the null hypothesis? OA. Fail to reject Ho, because t< -1.681. OB. Fail to reject Ho, because t> -1.681. OC. Reject Ho, because t< -1.681. D. Reject Ho, because t> -1.681.