What is the critical value if population proportion is 0.08 and alpha = 0.02 for a z test. How do you determine it?
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- If the observed statistic exceeds the critical ratio, what can we say about the p value with respect to the alpha level? A. p < α B. p > αWe 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? What is the p value?
- Explain why the critical value of t, one-tailed, alpha = .05 is the same as the critical value of t, two-tailed, a .10 .. 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; likelyWhat is the Degrees of Freedom and What is the t-critical value at alpha .05?
- We 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)?A random sample of 54 students from Cabrillo College are selected from a normal population with mu equal to 20 and sigma equal to 5. After a treatment is administered to the students, the researcher calculated the sample mean to be 21. Is there enough evidence to conclude that the treatment had an effect at the 5% significance level? In step three, can we use the Critical Value Method? (a)Don't know (b)Cannot Determine (c)No (d)YesIs the birth rate of the infants in this sample significantly different from that of the general population at alpha level of 0.05? Explain your response.