Q4

A random sample of 50 binomial trials resulted in 20 successes. Test the claim that the population proportion of successes does not equal 0.50. Use a level of significance of 0.05. (a) Can a normal distribution be used for the p distribution? Explain. O No, n.q is greater than 5, but n.p is less than 5. O Yes, n.p and n.q are both less than 5. O No, n.p and n.q are both less than 5. O Yes, n.p and n.q are both greater than 5. No, n.p is greater than 5, but n.q is less than 5. (b) State the hypotheses. OH: p 0.5 O Ho: p = 0.5; H1: p