Explain what the significance level is
[DOC File]Chapter 11- Testing A Claim
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The alpha level depends on our significance level. 8. What does statistically significant mean? This means that something, an event, is unlikely to happen by chance. 11.2 Carrying Out Significance Tests (pages 704-716) 1. Explain the difference between a one-sided alternative hypothesis and a two-sided alternative hypothesis?
[DOC File]Example SPSS Output for T-Test for Difference in Means
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To do an hypothesis test at a specific alpha (significance) level, just compare the p-value on the output (labeled as a “Sig.” value on the SPSS output) to the chosen alpha level. Alternatively, you could just report the p-value, rather than reporting whether the result is statistically significant or not at an arbitrary alpha level…
[DOC File]Explaining Unemployment: An Analysis on State …
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The significance level of .473 confirms this finding. My findings do not support the hypothesis that states with a higher portion of female workers will have higher unemployment rates. The results from my regression show that this relationship happens only about 47 percent of the time.
[DOC File]DeKalb County School District
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To test this claim, a significance test is carried out of. You learn that the power of this test at the 5% significance level against the alternative p = 0.08 is 0.29. (a) Explain in simple language what “power = 0.29” means in this setting.
[DOC File]Ms. McClelland's Math Pages - Home
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You do not need to present a complete significance test. Explain what the P-value measures in the context of the problem. 7. A consumer advocacy group tests the mean vitamin C content of 50 different brands of bottled juices using, in each case, a t-test of significance in which the null hypothesis is the mean amount of vitamin C that is on the ...
[DOC File]Test 11A - Mr. Nelson -- Grand Haven High School
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A significance test allows you to reject a hypothesis in favor of an alternative Ha at the 5% level of significance. What can you say about significance at the 1% level? (a) can be rejected at the 1% level of significance. (b) There is insufficient evidence to reject at the 1% level of significance.
[DOC File]AP Statistics Assignment #43
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Explain what this significance level represents and how it affects the decision they made. The significance level represents a “cut-off” point for the P-value and guides the students in deciding whether to reject or fail to reject the null hypothesis. If the students received a P-value that was less than .05, then their decision would have ...
[DOC File]The Practice of Statistics
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What is meant by a significance level? Explain what it means to say that data are statistically significant. How small should the P-value be in order to claim that a result is statistically significant? When using a fixed significance level to draw a conclusion in a statistical test what can be concluded when the P value is ( ( and ((?
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