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What are the critical values associated with a p level of 0.05 for a one-tailed hypothesis test using the z statistic? Using a p level of 0.05 and cutoff values of z = +1.96 and z = -1.96, what decision would we make if our calculated z statistic was 1.97?
Chi-Square Tests = used to test hypotheses about _____ for the levels of a single categorical variable (or two categorical variables observed together).
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Which of the following p-values will lead us to reject the null hypothesis if the level of significance equals 0.05? A. 0.055 B. 0.10 C. 0.025 D. 0.15 Suppose that we reject a null hypothesis at the 0.05 level of significance. Then for which of the following α-values do we also reject the null hypothesis? A. 0.06 B. 0.03 C. 0.04 D. 0.02
Statistical tests allow psychologists to work out the probability that their results could have occurred by chance, and in general psychologists use a probability level of 0.05. This means that there is a 5% probability that the results occurred by chance.
Sep 15, 2016 · Statistical significance, often represented by the term p < .05, has a very straightforward meaning. If a finding is said to be “statistically significant,” that simply means that the pattern...
1. We would like to test the following hypotheses H0 :p = 0.05 HA :p < 0.05 The sample size is 150 and the sample proportion is 8%, i.e. p hat = 0.08. Which of the below is the correct test for this situation? A. z-test for a proportion B. t-test for a mean C. z-test for comparing two proportions D. chi-square test of independence
