Calculate the critical value for a two-tailed test with N=15, a baseline probability of .5 and alpha = .05.
Calculate the critical value for a two-tailed test with N=15, a baseline probability of .5 and alpha = .05
Given, alpha = 0.05
n = 15
df = 15 - 1 = 14
t crit = 2.145
Therefore, the critical value for a baseline probability of 0.5 and alpha = 0.05 is 2.145
Calculate the critical value for a two-tailed test with N=15, a baseline probability of .5 and...
Calculate the critical value for a one-tailed test with N=18, a baseline probability of .5 and alpha = .01.
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QUESTION 15 The critical value for a 2-tailed independent t-test with two groups of 15 people (alpha .01) is: +/- 1.960 +/- 2.763 +/- 2.101 +/- 2.878
1)Find the critical value for right tailed T- test if n = 15, and the level of significance is 5% a) 1.753 b) 2.145 c)1.761 d) 2.131 2) Find the critical value for left tailed T- test if n = 15, and the level of significance is 5% a)-1.761 b)1.761 c)1.753 d)-1.753
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How to Find a Critical Z Value LEARNING OBJECTIVE: Calculate a critical z-score for a left-tailed, right-tailed, or two-tailed test. Select the correct statement. a.) The critical z-score for a left-tailed test at a 12% significance level is -0.45. b.) The critical z-score for a right-tailed test at a 9% significance level is 1.34. c.) The critical z-score for a two-sided test at a 4% significance level is 1.75. d.) The critical z-score for a two-sided test at a 20% significance level is 0.85.
In a difference of proportion test with alpha = .05, the critical values(s) for a two-tailed test is/are -2.575 and 2.575 1.96 -1.645 and 1.645 -1.96 and 1.96 If the test statistic for a difference of means test has a p-value of .065, we could reject the Null Hypothesis at an alpha level of.10. True False
6. What is the appropriate critical value for an upper-tailed test of the ratio of two variances, where n1=16 and n2=26 and alpha is .10?
c. Find the critical t value(s) for ? .10 with n-18 for a two-tailed t test. 7. An instructor wishes to see whether the variation is scores of the 23 students in her class is less than the variance of the population. The variance of the class is 198. Is there enough evidence to support the claim that the variation of the students is less than the population variance (?2 225) at ? .05? Assume that the scores are normally...
9. Find the critical value of a right tailed t-test where n and.05. 12 10. What would the decision be if the test value was 1.48 and the critical value was 1.22? 11. What is the symbol for a type I error? 12. When the sample standard deviation is known which of the following tests it used? T-test or z-test