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You are performing a two-tailed test.
If α=.005, find the positive critical value, to three decimal places.
zα/2 =
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- You are conducting a two-tailed test of a claim about a population proportion .If α=0.02, find the positive critical value, to two decimal places. _____________Stock y has a beta of 1.2 and an expected return of 11.5. Stock z has a beta of .80 and an expected return of 8.5 percentWe want to use a z-test to determine if the mean is different from 10 at alpha = 0.05. Using the z-table, what is the critical value(s)?
- In a test of H0: µ=150 against HA: µ<150, a sample of size 250 produces Z = -0.65 for the value of the test statistic. Thus the p-value is approximately equal toAssuming all other factors are held constant, if the df value for a two-tailed t-test with a = .05 were increased from df =6 to df = 20, what would happen to the critical values for t?If our significant value falls below alpha, which is set at .05, we are over 95% confident that the results did not happen by chance. true or false?
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