Ascience student wishes to study a new type of flower, the orchadeus. she would in particular like to study whether there is any association between whether the flower grows in sunlight and the length of the flower's stem. the orchadeus is prevalent in the student's home town. the student searches for 50 orchadeus flowers that grow in direct sunlight and 50 orchadeus flowers that grow in the shade. she measures the length of the stem in all 100 flowers. it is found that the flowers that grew in direct sunlight had longer stems than those that grew in the shade. a)this is an example of an . b)based on what the student found, there sufficient evidence to conclude that growing in the sun will cause an orchadeus flower to grow a longer stem.