Laws of statistics indicate that surveys get more accurate with larger sample sizes. you want an accurate survey but your cost per respondent is $2 and your budget is $250. how many respondents can you survey?

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label?