Question

Researchers examined the frequency at which they observed fruit production in a new strain of orange tree. They hypothesized that the new orange breed had different monthly rates of fruit production compared to the existing strain of Blood Oranges (using expected historical averages for the last five years). Using the data below, determine if the observed rates of production are different for the Vitek strain compared to the old strain of orange.

Month    Vitek-strain Oranges counted Blood Oranges counted

January    67    67

February 44    60

March    45    62

April 35    60

May    50    58

June 40    55

July 30    30

August 8 8

September 63    120

October 340    270

November 262 252

December 112 225

What statistical test should you use? What is your null and alternate hypothesis? Showing your calculations and methods, conduct the statistical test.

Answer 1