MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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- Test the hypothesis using the P-value approach. Be sure to verify the requirements of the test. H0: p=0.7 versus H1: p>0.7 n=200; x=150; α=0.05 Click here to view page 1 of the table. LOADING... Click here to view page 2 of the table. LOADING... Calculate the test statistic, z0. z0=nothing (Round to two decimal places as needed.) Identify the P-value. P-value=nothing (Round to three decimal places as needed.) Choose the correct result of the hypothesis test for the P-value approach below. A. Do not reject the null hypothesis, because the P-value is less than α. B. Do not reject the null hypothesis, because the P-value is greater than α. C. Reject the null hypothesis, because the P-value is greater than α. D. Reject the null hypothesis, because the P-value is less than α.arrow_forwardFind the P-value. (Round to three decimal places as needed.) Based on these results, what is your conclusion? Choose the correct answer below. A. Rejectthe null hypothesis. There is not sufficient evidence of an association between race and the section of the apartment complex in which people live. B. Reject the null hypothesis. There is sufficient evidence of an association between race and the section of the apartment complex in which people live. C. Fail to reject the null hypothesis. There is sufficient evidence of an association between race and the section of the apartment complex in which people live. D. Fail to reject the null hypothesis. There is not sufficient evidence of an association between race and the section of the apartment complex in which people livearrow_forwardClaim: Most adults would erase all of their personal information online if they could, A software firm survey of 586 randomly selected adults showed that 61% of them would erase all of their personal information online if they could. Find the value of the test statistic. The value of the test statistic is. (Round to two decimal places as needed.)arrow_forward
- The proportion of people who live after fighting cancer is 0.75. Suppose there is a new therapy that is used to increase the survival rate. Use the parameter p to represent the population portion of people who survive after fighting cancer. For a hypothesis test of the therapy’s effectiveness, researchers use a null hypothesis of p = 0.75. Pick the correct alternative hypothesis. 1. p > 0.75 2. p < 0.75 3. p 6= 0.75arrow_forwardThe null and alternate hypotheses are: Ho Hy H2 H₁ H₁ H₂ A random sample of 11 observations from one population revealed a sample mean of 23 and a sample standard deviation of 1.1. A random sample of 4 observations from another population revealed a sample mean of 24 and a sample standard deviation of 1.3. The population standard deviations are unknown but assumed to be equal. At the 0.05 significance level, is there a difference between the population means? Required: a. State the decision rule. (Negative amounts should be indicated by a minus sign. Round your answer to 3 decimal places.) Answer is complete but not entirely correct. -1.761 or 1.761 The decision rule is to reject Ho b. Compute the pooled estimate of the population variance. (Round your answer to 3 decimal places.) Pooled estimate of the population variancearrow_forwardTest the hypothesis using the P-value approach. Be sure to verify the requirements of the test. H0: p=0.8 versus H1: p>0.8 n=250; x=215; α=0.1 Click here to view page 1 of the table. LOADING... Click here to view page 2 of the table. LOADING... Calculate the test statistic, z0. z0=nothingarrow_forward
- Test the hypothesis using the P-value approach. Be sure to verify the requirements of the test. H0: p=0.5 versus H1: p>0.5 n=250; x=145; α=0.1 Click here to view page 1 of the table. LOADING... Click here to view page 2 of the table. LOADING...arrow_forwardState whether the standardized test statistic t indicates that you should reject the null hypothesis. Explain. (a) t= 1.584 (b) t=0 (c) t= - 1.526 (d) t= - 1.604 to = - 1.558 (a) For t= 1.584, should you reject or fail to reject the null hypothesis? O A. Fail to reject Ho, because t> - 1.558. O B. Reject Ho, because t> - 1.558. O C. Reject Ho, because t - 1.558. O B. Fail to reject Ho, because t - 1.558. (c) For t= - 1.526, should you reject or fail to reject the null hypothesis? O A. Reject Ho, because t - 1.558. O C. Fail to reject Ho, because t> - 1.558. O D. Fail to reject Hn, because t< - 1.558.arrow_forwardThe null and alternative hypotheses are given. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed. What parameter is being tested? Ho: P= 0.76 H₁: p>0.76 Choose the correct answer below. Left-tailed OTwo-tailed Right-tailed BLECHarrow_forward
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