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= 2 = 3 = 4 = 5 =7 8 = 9 = 10 = 11 = 12 13 Confidence in banks: A poll conducted
= 2 = 3 = 4 = 5 =7 8 = 9 = 10 = 11 = 12 13 Confidence in banks: A poll conducted 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 TI-84 Plus calculator. 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 P-value method with the Part: 0 / 5 Part 1 of 5 (a) State the appropriate null and alternate hypotheses. Ho : 00 0=0 H : P This hypothesis test is a (Choose one) v test. X 5 Part: 1 / 5 Part 2 of 5 (b) Compute the value of the test statistic. Round the answer to at least two decimal places. Z = X 5Part: 2 / 5 Part 3 of 5 (c) Compute the P-value. Round the answer to at least four decimal places. P-value = X 5 Part: 3 / 5 Part 4 of 5 (d) Determine whether to reject Ho. At the a = 0.10 level, (Choose one) |the null hypothesis Ho. X 5 At the a = 0.05 level, (Choose one) v the null hypothesis Ho. Part: 4 / 5 Part 5 of 5 (e) State a conclusion. At the a = 0.10 level of significance, there (Choose one) | enough evidence to conclude that greater than 11% of U.S. adults have a great deal of confidence in banks. At the a = 0.05 level of significance, there (Choose one) enough evidence to conclude that greater than 11% of U.S. adults have a great deal of confidence in banks
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