It is known that for right-handed people, the dominant (right) hand tends to be stronger. For...

 

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It is known that for right-handed people, the dominant (right) hand tends to be stronger. For left-handed people who live in a world designed for right-handed people, the same may not be true. To test this, muscle strength was measured on the right and left hands of a random sample of 15 left-handed men and the difference (left - right) was found. The alternative hypothesis is one-sided (left hand stronger). The resulting t-statistic was 1.80. 15. This is an example of: A. A two-sample t-test. B. A paired t-test. C. A pooled t-test. D. An unpooled t-test. 16. Assuming the conditions are met, based on the t-statistic of 1.80 the appropriate conclusion for this test using a = .05 is: (Table would be provided with exam.) A. Df = 14, so p-value <.05 and the null hypothesis can be rejected. B. Df = 14, so p-value > .05 and the null hypothesis cannot be rejected. C. Df = 28, so p-value <.05 and the null hypothesis can be rejected. D. Df = 28, so p-value > .05 and the null hypothesis cannot be rejected. 17. A test of Ho: u = 0 versus Ha: u> 0 is conducted on the same population independently by two different researchers. They both use the same sample size and the same value of a = 0.05. Which of the following will be the same for both researchers? A. The p-value of the test. B. The power of the test if the true u= 6. C. The value of the test statistic. D. The decision about whether or not to reject the null hypothesis. It is known that for right-handed people, the dominant (right) hand tends to be stronger. For left-handed people who live in a world designed for right-handed people, the same may not be true. To test this, muscle strength was measured on the right and left hands of a random sample of 15 left-handed men and the difference (left - right) was found. The alternative hypothesis is one-sided (left hand stronger). The resulting t-statistic was 1.80. 15. This is an example of: A. A two-sample t-test. B. A paired t-test. C. A pooled t-test. D. An unpooled t-test. 16. Assuming the conditions are met, based on the t-statistic of 1.80 the appropriate conclusion for this test using a = .05 is: (Table would be provided with exam.) A. Df = 14, so p-value <.05 and the null hypothesis can be rejected. B. Df = 14, so p-value > .05 and the null hypothesis cannot be rejected. C. Df = 28, so p-value <.05 and the null hypothesis can be rejected. D. Df = 28, so p-value > .05 and the null hypothesis cannot be rejected. 17. A test of Ho: u = 0 versus Ha: u> 0 is conducted on the same population independently by two different researchers. They both use the same sample size and the same value of a = 0.05. Which of the following will be the same for both researchers? A. The p-value of the test. B. The power of the test if the true u= 6. C. The value of the test statistic. D. The decision about whether or not to reject the null hypothesis.

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1 d left right HO Hd 0 Ha Hd 0 This is t test of difference le... View the full answer