ou are performing a left-tailed test. If α=.02α=.02, find the critical value, to three decimal places. zα =
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You are performing a left-tailed test.
If α=.02α=.02, find the critical value, to three decimal places.
zα =
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- If the df value for a two tailed test with alpha =0.05 were to increase from df=5 to df=22,what would happen to the critical values for t?You are performing a left-tailed test.If α=.002α=.002, find the critical value, to three decimal places.zα =You are performing a two-tailed test.If α=.002α=.002, find the positive critical value, to three decimal places.zα/2
- If the value of Cronbach’s alpha is 0.07, it means ___________; a. Research instrument is not reliable b. Research instrument is internally consistent c. Data is reliable d. Data is internally consistentStock 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 percentAssume the model: Y = 5 - 2X + e , where e ~ N(0,81) What is the expected value of Y when X =1? Now What is the standard deviation of Y when X=0? Now What is the Pr(Y>10) when X =2? Now What is the Pr(-6 < Y < 21) when X=1?
- If the test of H0: = 19 against Ha: ≠ 19 based on an SRS of 15 observations from a Normal populationproduces the statistic of t = –1.75. The P-value isIn 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 toYou are performing a two-tailed test.If α=.005α=.005, find the positive critical value, to two decimal places
- . In general, a ____ t-statistic and a _____ p-value (relative to a chosen critical value and alpha) indicate that our estimated statistic is ____ to occur by chance if the null is true. a. Large; large; likely b. Small; large; likely c. Small; small; unlikely d. Large; large; likelyStep 2: Determine if r is statistically significant at 0.01 and 0.05 levels.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?