An investigation was carried out in a particular city, the objective of this study was to study the television habits of the inhabitants of that city. A sample of 400 participants is selected and each is asked to keep a detailed record of all the time they watch television during a specific month. The results are as follows: Average time spent watching television per month 75 hours and a standard deviation of 24.3 hours 170 inhabitants watch the noon news at least twenty times per month Suppose the person conducting such research wishes to conduct another survey in a different city.