U lest the hull and alternative hypotheses shown to the right using an alpha level equal to 0.10. The population standard deviations are assumed to be known. After the sample data are collected, the test statistic is computed to be z=1.53. Complete parts a through c below. a. Using the test statistic approach, what conclusion should be reached about the null hypothesis? Determine the critical value(s) for a=0.10. Select the correct choice below and fill in the answer box to complete your choice. (Round to two decimal places as needed.) OA. OB. Za OC. -za= State the conclusion. Choose the correct answer below. O A. Reject the null hypothesis. There is not sufficient evidence at a= 0.10 to suggest that the difference of the population means is different from 0. O B. Do not reject the null hypothesis. There is not sufficient evidence at a=0.10 to suggest that the difference of the population means is different from 0.

U lest the hull and alternative hypotheses shown to the right using an alpha level equal to 0.10. The population standard deviations are assumed to be known. After the sample data are collected, the test statistic is computed to be z=1.53. Complete parts a through c below. a. Using the test statistic approach, what conclusion should be reached about the null hypothesis? Determine the critical value(s) for a=0.10. Select the correct choice below and fill in the answer box to complete your choice. (Round to two decimal places as needed.) OA. OB. Za OC. -za= State the conclusion. Choose the correct answer below. O A. Reject the null hypothesis. There is not sufficient evidence at a= 0.10 to suggest that the difference of the population means is different from 0. O B. Do not reject the null hypothesis. There is not sufficient evidence at a=0.10 to suggest that the difference of the population means is different from 0.

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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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A survey of 64 companies revealed that the median price charged for a certain trial was $13 with a standard deviation $7 do these data provide sufficient evidence to indicate that the population mean is greater than $11. Consider the significance of 10%. 1. The parameter of interest is:2. The hypotheses for this test are:3. The calculated test statistic is:4. The critical region is:5. Draw the critical zone (make decision):6. It can be concluded that:
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Use a t-test to test the claim about the population mean u at the given level of significance a using the given sample statistics. Assume the population is normally distributed. Claim: µ = 52,500; a = 0.05 Sample statistics: x= 53,637, s= 2400, n = 18 Click the icon to view the t-distribution table. What are the null and alternative hypotheses? Choose the correct answer below. Ο Α. Hρ μ= 52,500 Hai µ#52,500 B. Ho: µ+ 52,500 Hai µ = 52,500 O C. H μ 52,500 Ha: µ 52,500 What is the value of the standardized test statistic? The standardized test statistic is |. (Round to two decimal places as needed.) What is(are) the critical value(s)? The critical value(s) is(are) (Round to three decimal places as needed. Use a comma to separate answers as needed.) Decide whether to reject or fail to reject the null hypothesis. O A. Reject Ho. There is enough evidence to reject the claim. O B. Fail to reject Ho. There is enough evidence to reject the claim. Click to select your answer(s).
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Use the t-distribution and the sample results to complete the test of the hypotheses. Use a 5% significance level. Assume the results come from a random sample, and if the sample size is small, assume the underlying distribution is relatively normal.Test H0 : μ=15 vs Ha : μ>15 using the sample results x¯=17.2, s=6.4, with n=40. Give the test statistic and the p-value. What is the conclusion?
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Use standard normal distribution table.
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Use a t-test to test the claim about the population mean μ at the given level of significance α using the given sample statistics. Assume the population is normally distributed. Claim: μ=52,500; α=0.10 Sample statistics: x=52,691, s=1900, n=17 LOADING... Click the icon to view the t-distribution table. What are the null and alternative hypotheses? Choose the correct answer below. A. H0: μ≠52,500 Ha: μ=52,500 B. H0: μ≤52,500 Ha: μ>52,500 C. H0: μ=52,500 Ha: μ≠52,500 D. H0: μ≥52,500 Ha: μ<52,500 What is the value of the standardized test statistic? The standardized test statistic is nothing. (Round to two decimal places as needed.) What is(are) the critical value(s)? The critical value(s) is(are) nothing. (Round to three decimal places as needed. Use a comma to separate answers as needed.) Decide whether to reject or fail to reject the null hypothesis. A. Fail to reject H0.…
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