Question 6
A manufacturer of mobile phones wants to do a sample survey about the brand standing of its brand. It plans to do a house-to-house multistage cluster sampling survey. The company classifies its customers based on gender (men / women) and age (Young / Early middle age / Late middle age / Elder) and customizes its designs accordingly. The company wants to do the study in two cities. The company wants to have a robust sample size in EACH city with no compromises. What should be the sample size totally, for the two cities put together? NOTE: Please round off the answer to NO DECIMALS and choose the appropriate option here
121
347
519
480
22