Math-K300 Spring 2022 Online Kierstyn Cochr E Homework: Section 6.3 Confidence Intervals for

Math-K300 spring 2022 Online Homework: Section 6.3 Confidence Intervals for Population Pr Question 15, 6.3.19-T Part 1 of 3 Kierstyn Cochr HW Score: 52.47%, 14.17 of 27 points O Points: O of I A researcher wishes to estimate. with 90% confidence, the population proportion of adults who eat fast food four to six times per week. Her estimate must be accurate within 3% of the population proportion. (a) No preliminary estirnate is available. Find the minimum sample size needed. (b) Find the minimum sample size needed. using a prior study that found that 46% of the respondents said they eat fast food four to six times per week. (c) Compare the results from parts (a) and (b). (a) What is the minimum sample size needed assuming that no prior information is available? n = (Round up to the nearest whole number as needed