a. A survey contacted a random sample ofn = 301 likely voters within a voting district. Of these people, 168 indicated that they support a new ballot measure. You want to construct a confidence interval based on this sample using the normal distribution as a mathematical model. What is the standard error? Round your answer to 3 decimal places as necessary.

b. You plan to test the null hypothesis thatp₀ = 0.25 of M&M's are blue. You collect several bags of M&M's to obtain a random sample ofn = 94 M&M's. You plan to use the normal distribution to approximate the sampling distribution of the proportion. What is the standard error? Round your answer to 3 decimal places as necessary