Question
You have developed a nutrient cocktail which you believe reduces leaf yellowing under bright light for the houseplant Epipremnum aureum. You give this cocktail to
You have developed a nutrient cocktail which you believe reduces leaf yellowing under bright light
for the houseplant Epipremnum aureum. You give this cocktail to a random sample of 30 E. aureum plants,
and leave them with 30 control E. aureum in identical conditions in the greenhouse. After a week, you
record the percentage of E. aureum plants in each group with yellowed leaves, and want to test whether your
cocktail was effective. You need a test of:
(a) Unpaired means
(b) One sample proportion
(c) Paired means
(d) One sample mean
(e) Two sample proportion
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