8 If a null hypothesis is rejected if a = .05, it A. will never be...
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8 If a null hypothesis is rejected if a = .05, it ⒸA. will never be rejected if a = .01 ⒸB. will always be rejected if a = .01 CC. may be rejected or not rejected if a = .01 6/7/2019 10 In a test of the null hypothesis H0: μ = 2.7 with a = 0.10, against the alternative hypothesis HA: u 2.7, a large random sample produced a z-score of 3.0. Based on this, which of the following conclusion(s) can be drawn? A. There is evidence not to reject H0 μ = 2.7 with a = 0.10. : 0 B. If the z-score was negative instead of positive, we would need to retain the null hypothesis. ⒸC. We do not have sufficient evidence to conclude that u 2.7 with a = 0.10. D. µ = 2.7 less than 10% of the time. C E. Less than 10% of the time we will incorrectly reject the null hypothesis. 8 If a null hypothesis is rejected if a = .05, it ⒸA. will never be rejected if a = .01 ⒸB. will always be rejected if a = .01 CC. may be rejected or not rejected if a = .01 6/7/2019 10 In a test of the null hypothesis H0: μ = 2.7 with a = 0.10, against the alternative hypothesis HA: u 2.7, a large random sample produced a z-score of 3.0. Based on this, which of the following conclusion(s) can be drawn? A. There is evidence not to reject H0 μ = 2.7 with a = 0.10. : 0 B. If the z-score was negative instead of positive, we would need to retain the null hypothesis. ⒸC. We do not have sufficient evidence to conclude that u 2.7 with a = 0.10. D. µ = 2.7 less than 10% of the time. C E. Less than 10% of the time we will incorrectly reject the null hypothesis.
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