The goal of this week's homework is for you to manually determine if a difference of 1.5 between the petal lengths of setosa and versicolor is statistically significant at 95% confidence. for this you need to define ha as the difference between the mean of the petal length of the versicolor and the one of setosa. you need to also define h0 as 1.5.

Aschool typically sells 500 yearbooks each year for 50 dollars each. the economic calls does a project and discovers that they can sell 100 more yearbooks for every $5 decrease in price. the revenue for yearbook sales is equal to the number of yearbooks sold times the price of the yearbook. let x represent the number of $5 decrease in price. if the expression that represents the revenue is written in the form r(x)=(500+ax)(50-bx). to maximize profit, what price should the school charge for the yearbooks? what is the possible maximum revenue? if the school attains the maximum revenue, how many yearbooks will they sell?

What is the value of x? enter your answer in the box. (cm)

How many bananas are in a fruit bowl that has 200 total apples and bananas if there are 31 bananas for every 93 apples