Level of Significance

Related BrainMass Solutions

• Level of Significance in a Standardized Group

  "level of significance." 

• Defining "Significance Level" and "P-Value"

  This answer is a brief definition and explanation of significance level and p-value.

• How to choose a significance level for a hypothesis test

  Since type 1 error is same as the significance level, the lower significance will mean lower chances of making type 1 error. Thus, I would choose 1% or 0.1% significance level for this type of test.

• linear regression

  If the test is significant at the .05 level, this means that the correlation has only a 5% probability of being due to chance; and the 0.01 level, it only has a 1% probability of being due to chance. So, the lower significance level is better.

• Thirty Data Points

  At the 1% level of significance, a? __________ (is, is not) significant, and b? ________ (is, is not) significant. d. At the 2% level of significance, the critical t-value for a t-test is ___________. At the 2% level of significance, ?

• Grade Point Average Variances at a 0.05 Level of Significance

  level of significance.

• Significance Level from a Graph

  Determine the significance level. From the above graph, we can see that the rejection region is . So, which is the significance level. So, the significance level is 0.02.

• Test of hypothesis for proportions, standard deviation

  At the .05 level of significance, test the claim that at least half of all voters prefer the democratic candidate. Test the claim that the proportion with the lawn mowers is higher than 65%.

• Difference between confidence interval and significance level

  Confidence level of a confidence interval = 1 - significance level of the associated test. i.e. Confidence level of a confidence interval = 1- α, where α is the significance level of the associated test.

• Is there evidence that the mean cost for student textbooks at the University of China is above $310?

  Using the 0.10 level of significance, is there evidence that the population mean is above $310 b. What is your answer in (a) if s = $75 and the 0.05 level of significance is used? c.