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Biology and Environmental Science
Many backyard gardeners prefer Silver Queen Hybrid corn. This late-season variety is very sweet and has tender, white kernels. In some locations in the Northeast, gardeners have trouble harvesting this variety because of its longer growing time. The temperature of the soil should be at least 65°F before planting, and the growing time is approximately normal with mean 92 days and standard deviation 5 days.
a. What is the probability that a randomly selected seed will mature in less than 90 days?
b. What is the probability that a randomly selected seed will mature in between 95 and 100 days?
c. Suppose a row in a backyard garden contains 12 plants. What is the probability that four will be ready for dinner by the 95th day?
d. Find a value h such that 99% of all plants are ready to be harvested within h days.
Consider the system shown in Figure P10.43 and let R(s) = 0 and Td(s) = 0. Design the controller Gc(s) = K such that, in the steady-state, the response of the system y(t) is less than -40 dB when the noise N(s) is a sinusoidal input at a frequency..
What conditions need to be satisfied for a system of linear inequalities to have its solution in the first quadrant? Create such a system.
Determine the sample proportion of P&G workers who participate in 401(k) accounts. Determine the sampling error if in reality P&G workers have the same proportion of participants in 401(k) accounts as does the rest of the nation.
in a recent poll 778 adults were asked to identify their favorite seat when they fly and 492 of them chose a window
Acme plumbing supply just received a shipment of 5,000 stainless steel valves, but 50 regular steel valves were also sent. There is no way to tell the difference between the valves.
Please answer the following: Prove that the square of an even number is even. Make sure to show all steps required.
The probability that the pro shop sells 36 dozen balls is 0.59; otherwise, the pro shop sells 21 dozen balls. What is the standard deviation of the number of balls the pro shop sells in a month? (please round your answer to 2 decimal places)
Q1. A prison psychologist recorded the number of rule infractions for 15 prison inmates over a six-month period to be 5, 4, 2, 4, 3, 5, 2, 0, 4, 4, 5, 5, 3, 4, and 3. a. Make a frequency table. b. Make a histogram based on the frequency table.
Where could I find credible published data, with specific numbers on influenza and find the crude death rate, infant mortality rate and the incidence rate from two countries?
High precision titanium spheres are popular components in manufacturing of ball bearings. A factory has ordered a shipment of 5000 titanium spheres from aboard. It is found that the shipment has a mean radius of 1.5 cm with a standard deviation ..
What is the maximum likelihood estimator of μ1 - μ2? Construct a 99% con?dence interval for μ1 - μ2.
the average on an exam is 75 and the standard deviation is 17. if the instructor assigned grades based on the normal
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