Arnoldo Suasnavas has a plantain crop in the province of El Oro. The plants must be sprayed at the beginning of the grow
Posted: Sun Sep 05, 2021 5:19 pm
Arnoldo Suasnavas has a plantain crop in the province of El Oro.
The plants must be sprayed at the beginning of the growing season
to protect them against various insects and diseases. Two new
insecticides have just come on the market: Kitudíaz10 and
GabbariniPlus. To test their efficacy, three rows were selected and
sprayed with Kitudíaz10, and three rows were sprayed with
GabbariniPlus. When the bananas matured, 395 Kitudíaz10-treated
plants were checked for infection. Similarly, a sample of 400
plants sprayed with GabbariniPlus was checked. 24 plants of those
sprayed with Kitudíaz10 were infected, while 40 of those sprayed
with GabbariniPlus were infected. a. Can it be concluded that there
is a difference between the effectiveness of the two
pesticides?
b. What is the potency of the test?
c. What sample size do you recommend for the test to meet level,
potency and effect criteria?
The plants must be sprayed at the beginning of the growing season
to protect them against various insects and diseases. Two new
insecticides have just come on the market: Kitudíaz10 and
GabbariniPlus. To test their efficacy, three rows were selected and
sprayed with Kitudíaz10, and three rows were sprayed with
GabbariniPlus. When the bananas matured, 395 Kitudíaz10-treated
plants were checked for infection. Similarly, a sample of 400
plants sprayed with GabbariniPlus was checked. 24 plants of those
sprayed with Kitudíaz10 were infected, while 40 of those sprayed
with GabbariniPlus were infected. a. Can it be concluded that there
is a difference between the effectiveness of the two
pesticides?
b. What is the potency of the test?
c. What sample size do you recommend for the test to meet level,
potency and effect criteria?