a. At the 5% significance level, can we infer that the national leader's popularity has decreased?
b. Estimate with 95% confidence the decrease in percentage support between now and 6 months ago.
What are the hypotheses?
Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access.
Get one-on-one homework help from our expert tutors—available online 24/7. Ask your own questions or browse existing Q&A threads. Satisfaction guaranteed!