Tires You bought a new set of four tires from a manufacturer who just announced a recall because 2% of those tires are defective. What is the probability that at least one of yours is defective?
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