Who does not love avocado on toast? To investigate whether the price of avocados has varied throughout the years, the company Hass recorded the average price of avocados in the United States for a number of days from 2015-2018.

Average price: Average avocado price for the day

Year: Year of the data

Is there evidence of a difference in average daily price of avocados among the four years assessedHow to state the null and alternative hypotheses in this question?