H0: p = .20
Ha: p .20
A sample of 400 provided a sample proportion p-bar = .175.
a. Compute the value of the test statistic (to 2 decimals).
b. What is the p-value (to 4 decimals)?
c. Using = .05, can you conclude that the population proportion is not equal to .20?
Answer the next three questions using the critical value approach.
d. Using = .05, what is the critical value for the test statistic? (+ or -)
e. State the rejection rule: Reject H0 if z is the lower critical value or the upper critical value.
f. Using = .05, can you conclude that the population proportion is not equal to .20?
Recently Asked Questions
- The job performed by brand managers: A) is mainly concerned with the promotion of the entire product mix of their firm. B) involves broad responsibilities for
- Can I get help with this question I can not seem to get it. Please and thank you!
- Hello, I need some help with my Spanish. I am not asking you to give me the answers. If you have any questions let me know. Thank you!! **Prepara un ensayo