Calculate the p-value for the following conditions and determine whether or not to reject the null hypothesis.a) one-tail (upper) test, z₂ =2.73, and a = 0.10b) one-tail (lower) test, z = -0.59, and a = 0.05c) two-tail test, zp = -2.29, and a = 0.05d) two-tail test, z=2.09, and a = 0.02Click here to view the first page of the standard normal table. Click here to view the second page of the standard normal tablea) p-value= (Round to four decimal places as needed.)CIS

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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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Calculate the p-value for the following conditions and determine whether or not to reject the null hypothesis. a) one-tail (upper) test, z, =2.17, and c=0.10 b) one-tail (lower) test, zn = - 1.49, and a=0.05 c) two-tail test, zn = - 1.71, and o=0.05 d) two-tail test, z, =1.26, and c=0.02 Click here to view the first page of the standard normal table. Click here to view the second page of the standard normal table a) p-value = (Round to four decimal places as needed.) Determine whether or not to reject the null hypothesis. Choose the correct answer below. O A. Reject Ho, since the p-value is less than the significance level o. O B. Do not reject Ho, since the p-value is greater than or equal to the significance level d. O C. Do not reject Ho, since the p-value is less than the significance level o. O D. Reject Ho, since the p-value is greater than or equal to the significance level .
Find the P-value for the indicated hypothesis test with the given standardized test statistics z. Decide whether to reject H0 for the given level of significance α. Left-tailed test, z=-1.32, α=0.10 Right-tailed test, z=2.46, α=0.01 Two-tailed test, z=-1.68, α=0.05
Perform the following tests of hypothesis. (a) Ho: 1=285, H1: u< 285, x(mean)=267.80, s=42.90,n=55,a =0.05 (b) Ho: = 10.70,Н1 : u /= 10.70,x(mean)=12.025,s=4.90 n=47 a= 0.01
This Question: 4 pts 1 of 9 (0 complete) This Quiz: 45 pts possible Assume a significance level of a = 0.05 and use the given information to complete parts (a) and (b) below. Original claim: More than 54% of adults would erase all of their personal information online if they could. The hypothesis test results in a P-value of 0.1661. a. State a conclusion about the null hypothesis. (Reject H, or fail to reject Ho.) Choose the correct answer below. A. Reject Ho because the P-value is greater than a. B. Reject Ho because the P-value is less than or equal to a. C. Fail to reject H, because the P-value is less than or equal to a. O D. Fail to reject H, because the P-value is greater than a. b. Without using technical terms, state a final conclusion that addresses the original claim. Which of the following is the correct conclusion? A. There is sufficient evidence to support the claim that the percentage of adults that would erase all of their personal information online if they could is…
State the Result: A hypothesis test was conducted at the alpha = 0.01 level of significance. The test resulted in a p-value of 0.044.
Under what circumstances is a t statistic used instead of a z-score for a hypothesis test? Justin wants to know whether a commonly prescribed drug does improve the attention span of students with attention deficit disorder (ADD). He knows that the mean attention span for students with ADD who are not taking the drug is 2.3 minutes long. His sample of 12 students taking the drug yielded a mean of 4.6 minutes. Justin can find no information regarding σx , so he calculated s2x =1.96. Determine the critical region using a one-tailed test with alpha = .05. Conduct the hypothesis test (Do the math and compare the t-critical and t-obtained values). State your conclusions in terms of H0 (Should you reject the H0 or fail to reject/accept the H0). Based on your analysis, is there a relationship between the drug and attention span?
In a given hypothesis test, the null hypothesis can be rejected at the 0.10 and the 0.05 level of significance, but cannot be rejected at the 0.01 level. The most accurate statement about the ?−p−value for this test is: A. ?-value=0.10p-value=0.10 B. 0.01<?-value<0.050.01<p-value<0.05 C. 0.05<?-value<0.100.05<p-value<0.10 D. ?-value=0.01p-value=0.01
A hypothesis test will be conducted and after summarinzing the data, the observed test statistic is z = 1.9. Explain how much evidence we have against the null hypothesis (H0) and for the alternative hypothesis (Ha) in each of the following sets of hypotheses: Explain the reason that the answer differs depending on the chosen alternative hypothesis.
Find the P-value for a left-tailed hypothesis test with a test statistic of Z=−1.65. Decide whether to reject H0 if the level of significance is α=0.05 P-value= (Round to four decimal places as needed.)
A null and alternative hypothesis are given. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed. Ho: Ha: р = 0.8 p0.8 What type of test is being conducted in this problem? A. Left-tailed test B. Two-tailed test C. Right-tailed test

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Calculate the p-value for the following conditions and determine whether or not to reject the null hypothesis. a) one-tail (upper) test, z = 2.73, and a = 0.10 b) one-tail (lower) test, z = -0.59, and a = 0.05 c) two-tail test, z₂ = -2.29, and a = 0.05