Several students are interpreting the data they gathered on the body color of the fruit fly Drosophila melanogaster. They are attempting to determine whether the genes for brown body color and ebony body color in D. melanogaster display autosomal recessive inheritance or Y-linked inheritance. Punnett squares showing the potential offspring for each inheritance pattern are displayed below, where "+" denotes the mutation for ebony body color.

E e+
e+ Ee+ e+e+
e+ e+e+ e+e+

Autosomal Recessive

E codes for brown
e+ codes for ebony

X X
X XX XX
Y+ XY+ XY+

Y-linked

X codes for brown
Y+ codes for ebony
During their analysis, the students realize that they did not record the sex of the flies they observed. They decide to perform chi-square testing to determine which inheritance pattern is suggested by the data they gathered. The students devise the two hypotheses shown below and test them independently.

Hypothesis 1: Body color in D. melanogaster is inherited as an autosomal recessive trait.
Hypothesis 2: Body color in D. melanogaster is inherited as a Y-linked trait.
The students' data is shown below.

Brown Body 99
Ebony Body 341
Total 440
Which statement most likely describes the results of the students' chi-square testing?