P value significance level calculator

    • [PDF File]Using Your TI-NSpire Calculator for Hypothesis Testing ...

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      Using Your TI-NSpire Calculator for Hypothesis Testing: The One-Sample t Test Dr. Laura Schultz ... Compare the P-value to your alpha level. If the P-value is less than or equal to alpha, you will reject the null hypothesis ... one-sample t test with a significance level of ...

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    • [PDF File]Statistical Significance, Effect Size, and Practical ...

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      Statistical Significance, Effect Size, and Practical Significance Eva Lawrence Guilford College October, 2017 ... Report the exact p value, except when SPSS reports a p value of .000. This does ... results “approach significance” and report the exact p value. Some researchers

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    • [PDF File]Finding P-values TI-84 Instructions

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      Finding P-values TI-84 Instructions Rick Gumina Page 1 of 1 Finding P-values_calculator-TI84.doc Rev 1/12 Right Tailed t-test: 1) Calculate t_calc (t_test)

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    • [PDF File]Is it statistically significant? The chi-square test

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      Steps to follow • State the hypothesis • Calculate the expected values • Use the observed and expected values to calculate the chi-square test statistic • Establish the significance level you need (usually 95% p = 0.05) and the number of degrees of freedom • Compare the chi-square statistic with the critical value from the table • Make a decision about your hypothesis

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    • [PDF File]Running a t-test in Excel

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      on your experiment the most important result is the p-value, highlighted at left in the pink cell. Since you set your alpha value at 0.05, if the p-value is less than 0.05, you can say that there is a statistically significant difference between the means of your two trials. Note that in this example, p = 2.6 x 10-16, which is < 0.05, so the

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    • [PDF File]Calculation of P-Values - Radford University

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      Calculation of P-Values Suppose we are doing a two–tailed test: • Null hypothesis: = 0 • Alternative hypothesis: ̸= 0 • Give the null hypothesis the benefit of the doubt and assume that it is still the case that = 0. • Now calculate the P–value which is the smallest probability for which we would have rejected the null hypothesis. X. • In terms of the z–distribution (or t ...

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    • [PDF File]Interpreting test statistics, p-values, and significance

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      Interpreting test statistics, p-values, and significance Analysis Test statistic Null hypothesis Alternative hypothesis Results p-value significance decision Difference-of- means test t (two-tailed) (see note 1) 1 = 2 1 ≠ 2 big t (> +2.0 or < -2.0) small p (< 0.05) yes (significant difference of …

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    • [PDF File]How To Run Statistical Tests in Excel

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      o The p­value for the slope (not the p­value for the y ­intercept, which you usually don’t care about). If p < .05, then you can reject the null hypothesis that the independent vari able has no effect on the response variable. After all, a positive or negative

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    • [PDF File]What is the difference between an alpha level and a p-value

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      What is the difference between an alpha level and a p-value? Science sets a conservative standard to meet for a researcher to claim that s/he has made a discovery of a real phenomenon. The standard is the . alpha level, usually set of .05.

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    • [PDF File]P Values, Statistical Significance & Clinical Significance

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      P values and Statistical Significance When looking at the results of a study, a natural question is—is it likely that the reported results were due to random chance alone? A quick and simple item to look at is the p value. The p value tells you how probable the results were due to luck.

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