How to find the value of sample proportion.
1. Eighty-eight shoppers were interrogated at random and 59 said that they prefer to shop alone.
1) What is the value of q-hat?
2) Find a 90% confidence interval for p.
2. A sample of 19 albino Hungarian lined aardvarks was examined for nose length. Since this is a small sample how many degrees of freedom will be used to find the t-score?