The local agricultural official gave the fruit growers of the District 10 Farmers' Cooperative a new pesticide that they applied for a period of three years to their pear orchards in place of the pesticide they had formerly applied. ██████ █████ █████ ██████ ███ ██████████ ██ █████ ████ ██ ███████ ███ █████████████ ████ ████ ██ ███ ████ ██████ ███ ████████ ██████████ ███████ ██ ███ █████ ██ █████ ████████ ███ ████████ █████████ ████ ███ ███ █████████ ███ ████ █████████ ████ ███ ███ ██████████ ██ █████ ██ ███ █████ █████ ██ ████████ ███ ████ ██ ███████ █████ ██ ████████
The official hypothesizes the new pesticide better protects some fruit against insect pests than the old pesticide, at least in the short term. Why? Because when the new pesticide was applied to a sample of pear trees over three years, those trees lost fewer pears to insects than they had over the previous three years.
The official assumes there’s no other reason, besides the new pesticide, why insects ate a smaller proportion of the sample pears during the last three years than they ate during the previous three years.
The official's conclusion is most ████████ █████████ ██ █████ ███ ██ ███ █████████ ██████ ██ █████ ███ ███ ████ █ █████████ ██ ██████ ██ █████ ██ ████████
peach trees grown ██ ███ ████████ ████ ████ ███████ ████ ███ ███ █████████ ███████ ██ ███ ███ █████████
peach trees grown ██ ███ ████████ ████ ████ ███████ ████ ███ ███ █████████ ██ ████████ ██ ███ ███ █████████
pear trees grown ██ ███ ████████ ████ ████ ███████ ████ ███ ███ █████████ ███████ ██ ███ ███ █████████
pear trees grown ██ █ ███████████ ████████ ████ ████ ███████ ████ ███████ ███ ███ ███ ███ ███ █████████
pear trees grown ██ █ ███████████ ████████ ████ ████ ███████ ████ ███ ███ █████████ ███████ ██ ███ ███ █████████