One tailed t table
[DOC File]Student's t-test
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Look at the ‘critical t’ for a one-tailed test in the printout. This is the value given for p = 0.1 in a t-table (because we are testing only for a difference in one direction - above zero - so we can double the normal probability of 0.05). We should have used this value, not the value for …
[DOC File]Columbia University in the City of New York
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In the z-table, 1.75 standard deviations corresponds to a probability of 0.4599, so our one-tailed p-value is approximately 0.5 – 0.4599 = 0.0401. Since this value is smaller than 0.05, we reject the null hypothesis, and conclude that the true population mean is less than 2.8 feet.
[DOC File]Table 1
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Table 1. Power of the One Sample t for Two-tailed Alpha Level = .05. Tabled entries are power to detect an effect size equal to the column header with a sample whose size is the row header.
[DOC File]Hypothesis Testing:
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One-sided (One tailed) test: Lower tailed: H0: population characteristics ( claimed constant value ... 0.001
[DOC File]00 PSY221 title and cover page - Fayetteville State University
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4A. α=.05, one-tailed test. 4B. α =.01, two-tailed test. 4C. α =.01, one-tailed test. 5. One tail-tests: predict the direction of the effect and are more likely to result in rejection of Ho . do not predict the direction of the effect and are more likely to result in rejection of Ho
[DOCX File]Chapter 1
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Directional hypothesis, one-tailed test. c. Null hypothesis, two-tailed test. d. Directional hypothesis, two-tailed test . 82. Nonparametric tests are more likely to be appropriate than parametric tests when: a. The response variable is severely skewed ... Questions 96 through 99 pertain to the following table (Table 6), which presents ...
[DOCX File]A2.1.3.StudentResponseSheet
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Step Eight: Determine if you completed a one-tailed or two-tailed test for significance. Step Nine: Use the t-table to compare the computed t value with the critical values to determine . whether . the results are statistically significant. Step Ten: Reject or accept null hypothesis.
[DOC File]The Effects of Temperature on Rates of Metamorphosis in ...
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To determine if differing temperatures quickened the rate of metamorphosis, a one-tailed t-test assuming unequal variances was completed. The null hypothesis that the temperature of incubation provides no significant input in the rate of metamorphosis can be rejected (p
[DOC File]Exercise Answers Chapter 9 - Guilford Press
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The degrees of freedom are (24,24) and the critical value from the F-table in Appendix A-7 is 2.27 for (=.05. We reject the null hypothesis of equal variances and use Case II to evaluate our main hypothesis concerning yields. This is a one tailed t-test using the Case II methodology summarized as equation 9-4.
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