Q#1: Find the critical value (t- value) that form the boundaries of the critical region for a two-tailed test with a = 0.05 for a sample size of nį = 11 & n2 = 8. %3D
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- L12Q5.At 10% level of significance, the critical value(s) of z to test H0: μ1= μ2; against Ha: μ1 ≠ μ2 is/areWe want to use a z-test to determine if the sample mean is less than 30 at alpha = 0.05. Use the z-table to find the critical value(s)What is the critical value if population proportion is 0.08 and alpha = 0.02 for a z test. How do you determine it?
- Setting a smaller alpha level means: A) No answer text provided. B)The acceptance region becomes smaller C) The value of the critical region becomes more positive/negative D) The p value should be large enough to reject the null hypothesisThe test statistic of z=−3.07 s obtained when testing the claim that p<0.12. a. Using a significance level of α=0.10, find the critical value(s). b. Should we reject H0 or should we fail to reject H0?if alpha is 1%, find the critical value (z-score)
- In a neighborhood of 150 homes, a survey of 45 homes found that the average number of pets was 2.1 (SD=0.75). The city-wide average for neighborhoods is 2.5 pets. Find the critical value of t and the value of t we obtain (or observe) presuming a 2-tailed test. Also, calculate the effect size.The test statistic of z= -1.90 is obtained when testing the claim that p<0.26. a. Using a significance level of a=0.01, find the critical value(s). b. Should we reject Upper H 0 or should we fail to reject Upper H 0?The test statistic of z equals - 2.62 is obtained when testing the claim that p less than 0.22. a. Using a significance level of alpha equals 0.05, find the critical value(s). b. Should we reject Upper H 0 or should we fail to reject Upper H 0?
- The test statistic of z=−1.68 is obtained when testing the claim that p<0.88. a. Using a significance level of a=0.01, find the critical value(s). b. Should we reject H 0 or should we fail to reject H 0?20. The mean of a population of raw scores is 60 (sX 16). Your X 66 (with N 40). Using the .05 criterion with the region of rejection in the lower tail, should you reject that the sample represents this population and why?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?