Suppose you are spinning pennies to test whether you get biased results. when you reject the null hypothesis when it is actually true, that is often called the first kind of error. the second kind of error is when the null is false and you fail to reject. report the first kind of error and the second kind of error.
the null hypothesis is that the penny is biased/biased). the first kind of error is saying the penny is /not biased) when in fact the penny is /not biased). the second kind of error is saying the penny
is biased/biased) when in fact the penny is /not biased)

The graph of y = ax^2 + bx + c is a parabola that opens up and has a vertex at (0, 5). what is the solution set of the related equation 0 = ax%2 + bx + c?

Finally, the arena decides to offer advertising space on the jerseys of the arena’s own amateur volley ball team. the arena wants the probability of being shortlisted to be 0.14. what is this as a percentage and a fraction? what is the probability of not being shortlisted? give your answer as a decimal. those shortlisted are entered into a final game of chance. there are six balls in a bag (2 blue balls, 2 green balls and 2 golden balls). to win, a company needs to take out two golden balls. the first ball is not replaced. what is the probability of any company winning advertising space on their volley ball team jerseys?

Ellen makes and sells bookmarks. she graphs the number of bookmarks sold compared to the total money earned. why is the rate of change for the function graphed to the left?