erent from the national average of 39 weeks, how would you set up the null and two-sided alternative hypotheses? Ho = Null Hypothesis
1.Respond to the following questions in accordance with characteristics of hypothesis testing. **This is copied and pasted from the document my professor assigned me. A-C are done, I just need to do D&E. Thanks.
A. If you want to see if the average gestational length among African American women is different from the national average of 39 weeks, how would you set up the null and two-sided alternative hypotheses?
Ho = Null Hypothesis Ha= Alternative Hypothesis
Ho: µ = 39 Ha: µ≠39
B. If you want to see if the average gestational length among African American women is less than the national average of 39 weeks, how would you set up the null and one-sided alternative hypotheses?
Ho = Null Hypothesis Ha= Alternative Hypothesis
Ho: µ = 39 Ha: µ<39
C. In other words, what is a P-value?
P-value answers the question: “If the null hypothesis were true, what is the probability of the observed test statistic or one that is more extreme”
D. If α is 0.10 and you find a P-value of 0.08 in your hypothesis test, what would you conclude?
E. How do you calculate the standard error of ?̅?
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