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Part: 0 / 2 Part 1 of 2 When should a one-tailed test be used? O A one-tailed test is used when the alternative hypothesis should be rejected if the test value is in the critical region on either side of the mean. A one-tailed test is used when the null hypothesis should be rejected if the test value is in the critical region on either side of the mean. A one-tailed test is used when the null hypothesis should be rejected if the test value is in the critical region on one side of the mean. O A one-tailed test is used when the alternative hypothesis should be rejected if the test value is in the critical region on one side of the mean. pe here to searchWhat is meant by a type II error? A type II error occurs when O the null hypothesis is rejected when it is true. O the null hypothesis is not rejected when it is false. Type here to search OFor the following conjecture, state the null and alternative hypothesis. More than 47% of American adults have retirement funds. The null hypothesis is H The alternative hypothesis is H, : Type here to searchWhat is meant by the critical region? O The critical or rejection region is the range of test values that indicates that there is not a significant difference and that the null hypothesis should not be rejected. O The critical or rejection region is the range of test values that indicates that there is a significant difference and that the null hypothesis should not be rejected. O The critical or rejection region is the range of test values that indicates that there is not a significant difference and that the null hypothesis should be rejected. O The critical or rejection region is the range of test values that indicates that there is a significant difference and that the null hypothesis should be rejected. Type here to search O n H KUsing the = table ( The Standard Normal Distribution Table), find the critical value (or values) for the left-tailed test with a = 0.09. Round to two decimal places, and enter the answers separated by a comma if needed. Critical value(s) : Type here to search O Ei O E R