Please HIGHLIGHT Answers for EMPTY BOXES only

PART A:

If we assume the x distribution is approximately normal, we will convert the x values in the given interval P(45 s x $ 49) to z scores, but instead of using the standard error o-, we can use the standard deviation of x, o = 8. Use the standard deviation and the given mean a = 47 to calculate the z score corresponding to x = 45, rounding the result to two decimal places. X - 4 7 = 47 8 Calculate the z-score corresponding to x = 49, rounding the result to two decimal places. X - LI = 47 8For a binomial experiment with r successes out sf n trials, what value do we use as a point estimate for the probability bf success ,9 on a single trial? Five hundred fourteen (514) homes in a certain southern California community.f are randomly surveyed to determine if they meet minimal earthquake preparedness recommendations. One hundred seventy-six [1?6} of the homes surveyed met the minimum recommendations for earthquake preparedness and 338 did not. Find the point estimate for the population proportion of homes that do not meet the minimum recommendations for earthquake preparedness. [Round your answer to four decimal places.) |:| According to a poll, 77% of California adults (389 out of 506 surveyed) feel that education is one of the top issues facing California. We wish to construct a 90% confidence interval for the true proportion of California adults who feel that education is one of the top issues facing California. Find the error bound. (Round your answer to three decimal places.)