Confidence in banks: A news poll conducted in 2012 asked a random sample of 1217 adults in the United States how much confidence they had in banks and other financial institutions. A total of 160 adults said that they had a great deal of confidence. An economist claims that greater than 11% of U.S. adults have a great deal of confidence in banks. Can you conclude that the economist's claim is true? Use both a= 0.05 and a=0.10 levels of significance and the critical value method with the table. Part 1 of 5 State the appropriate null and alternate hypotheses. dlo Ho: P = .11 H: p> .11 This hypothesis test is a right-tailed test. Part 2 of 5 Find the critical values. Round the answer to three decimal places. For a= 0.05 , the critical value is 1.645 For a=0.10 , the critical value is 1.282 Part 3 of 5 Compute the test statistic. Do not round intermediate calculations. Round the answer to tw decimal places. z= 2.39 Part: 3/5 Part 4 of 5 Determine whether to reject Ho. At the a= 0,05 level, (Choose one) ▼ the null hypothesis H. At the a 0.10 level, (Choose one) ▼ the null hypothesis Ho. Skip Part Check Answer Save For Later Submit Assignment O2021 McGraw-Hill Education. All Riahts Reserved. Terms of Use I Privacy |6|0回

Confidence in banks: A news poll conducted in 2012 asked a random sample of 1217 adults in the United States how much confidence they had in banks and other financial institutions. A total of 160 adults said that they had a great deal of confidence. An economist claims that greater than 11% of U.S. adults have a great deal of confidence in banks. Can you conclude that the economist's claim is true? Use both a= 0.05 and a=0.10 levels of significance and the critical value method with the table. Part 1 of 5 State the appropriate null and alternate hypotheses. dlo Ho: P = .11 H: p> .11 This hypothesis test is a right-tailed test. Part 2 of 5 Find the critical values. Round the answer to three decimal places. For a= 0.05 , the critical value is 1.645 For a=0.10 , the critical value is 1.282 Part 3 of 5 Compute the test statistic. Do not round intermediate calculations. Round the answer to tw decimal places. z= 2.39 Part: 3/5 Part 4 of 5 Determine whether to reject Ho. At the a= 0,05 level, (Choose one) ▼ the null hypothesis H. At the a 0.10 level, (Choose one) ▼ the null hypothesis Ho. Skip Part Check Answer Save For Later Submit Assignment O2021 McGraw-Hill Education. All Riahts Reserved. Terms of Use I Privacy |6|0回

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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Based on information from Harper's Index, 37 out of a random sample of 100 adult Americans who did not attend college believe in extraterrestrials. However, out of a random sample of 100 adult Americans who did attend college, 47 claim that they believe in extraterrestrials. Does this indicate that the proportion of people who attend college and who believe in extraterrestrials is higher than the proportion who did not attend college? (a) State the hypotheses in plain language. (b) Fill in the table below, then enter this table in the left side of the Rossman-Chance applet. No college College Total Believe in ETs 84 Did not believe in ETs 116 Total 100 100 200 (c) Compute the point estimate for the difference in the proportion believing in extraterrestrials between those not attending college and those attending college. Pne – Pe = (d) Complete at least 1000 simulations in the Rossman-Chance app 2 and report your findings below. (For help with the applet, refer to the e "Using the…
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