What is the minimal sample size needed for a 95% confidence interval to have a maximal margin of error of 0.1 in the following scenarios? (Round your answers up the nearest whole number.)
(a) a preliminary estimate for p is 0.14
(b) there is no preliminary estimate for p
![What is the minimal sample size needed for a 95 confidence interval to have a maximal margin of error of 01 in the following scenarios Round your answers up the class=](https://us-static.z-dn.net/files/d1d/9f410f062dc58daeb5197e5602dc92e1.png)