What can you conclude from the results of the ?statistical analysis?
What can you conclude from the results of the ?statistical analysis? Correct Answer Accept the null hypothesis.
A. For a df of 3, the critical value for ?2 is 7.81 (p = 0.05, the generally accepted probability for accepting the null hypothesis). Because the value for ?2 for the data obtained in this question (?2 = 4) is less that the critical value (?2 = 7.81), the null hypothesis is accepted. The interpretation of these results is that there is more than a 5% chance that the difference between expected and observed values can be explained by chance alone. To help understand what this means, consider the possible extremes: If there were a 100% chance that the difference between expected and observed data could be explained by chance, then the results are very accurate. That is, the expected and observed results don’t differ at all. In contrast, if there were a 0% chance that the difference between expected and observed data could be explained by chance, then the data can only be explained by some variable in the experiment and the hypothesis is incorrect (and must be rejected). If this were the case, answer choices C or D, or some other explanation, could explain the results.
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Feb 20, 2025