According to a study published by a group of sociologists at the University of Massachusetts, approximately 49% of the Valium users in the state of Massachusetts are white-collar workers. What is the probability that between 482 and 510, inclusive, of the next 1000 randomly selected Valium users from this state are white-collar workers?

STAT 2004 WEEK 12 Statistical hypotheses- Research questions we wish to test using statistical evidence. o Ex: It’s always windy in Blacksburg. Suppose W represents wind speed in the US. W ~N(7,3) US US Null hypothesis- Blacksburg7 mph Alternative hypothesis- Blacksburg mph o The alternative hypothesis is what you think the truth is. The null hypothesis always includes an equal sign. Writing hypotheses: o Make alternative based on what you want to show. o Make null the opposite. Making a non 95% confidence interval: o Determine what the leftover or alpha level is o Determi