subject
Engineering, 04.12.2021 05:10 mackenziemelton26

The Mamestra brassicae a moth is primarily known as a pest that is responsible for severe crop damage on a wide variety of plant species. Because there are limited means of chemically controlling the species, the use of wasp species that parasitize the eggs is used to control the reproduction and hence presence of these moths in agricultural crops. At a farm where a wasp species was introduced the eggs of the moths where collected and examined to determine if the wasps had successfully parasitized the eggs of the moths. Of 100 eggs collected 64 were determined to have been taken over by the wasps. Determine the 95% confidence interval for the true proportion moth eggs parasitized by the wasps.

ansver
Answers: 2

Another question on Engineering

question
Engineering, 04.07.2019 18:10
Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.
Answers: 3
question
Engineering, 04.07.2019 18:10
Afull journal bearing has a journal diameter of 27 mm, with a unilateral tolerance of -0.028 mm. the bushing bore has a diameter of 27.028 mm and a unilateral tolerance of 0.04 mm. the l/d ratio is 0.5. the load is 1.3 kn and the journal runs at 1200 rev/min. if the average viscosity is 50 mpa-s, find the minimum film thickness, the power loss, and the side flow for the minimum clearance assembly.
Answers: 1
question
Engineering, 04.07.2019 18:10
Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?
Answers: 3
question
Engineering, 04.07.2019 18:10
At 12 noon, the count in a bacteria culture was 400; at 4: 00 pm the count was 1200 let p(t) denote the bacteria cou population growth law. find: (a) an expression for the bacteria count at any time t (b) the bacteria count at 10 am. (c) the time required for the bacteria count to reach 1800.
Answers: 1
You know the right answer?
The Mamestra brassicae a moth is primarily known as a pest that is responsible for severe crop damag...
Questions
question
Chemistry, 23.04.2021 07:50
question
English, 23.04.2021 07:50
question
Mathematics, 23.04.2021 07:50
Questions on the website: 13722361