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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
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 .= 0.05 and o= 0.10 levels of significance and the critical value method with the table. Part: 0 / 5 Part 1 of 5 State the appropriate null and alternate hypotheses. HO:'p:O'H' 0 =[ H:|p>011| e B This hypothesis test is a | (Choose one) V |test. X o Part: 1 /5 N Part 2 of 5 Find the critical values. Round the answer to three decimal places. For .= 0.05, the critical value is ' ' X S For o= 0.10, the critical value is ' ' Part: 2 /5 N Part 3 of 5 Compute the test statistic. Do not round intermediate calculations. Round the answer to two decimal places. = =] X S Part: 3 /5 NN Part 4 of 5 Determine whether to reject H,, . At the 0. = 0.05 level, | (Choose one) |the null hypothesis H, . At the .= 0.10 level, | (Choose one) |the null hypothesis H, . Part: 4 / 5 Part 5 of 5 State a confusion. At the 0.= 0.05 level of significance, there |(Choose one) V |enough evidence to conclude that greater than 11% of U.S. adults have a great deal of confidence in banks. At the 0.=0.10 level of significance, there |(Choose one) V |enough evidence to conclude that greater than 11% of U.S. adults have a great deal of confidence in banks
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