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Biology and Environmental Science
The historical mean yield of soybeans from farms in Indiana is 31.9 bushels per acre. Following a recent dry summer, a random sample of 26 farms across the state was obtained. The mean yield in bushels per acre was x = 30.088 with σ = 4.433.
Is there any evidence to suggest the lack of rain adversely affected the soybean yield in Indiana? Assume the underlying population is normal and use a = 0.01.
How did the Theodore D. Weld, William Lloyd Garrison, Arthur and Lewis Tappan, and Elizur Wright, Jr assist in the freeing of or ending of slaves/slavery?
A random sample of 50 female CFO's and a random sample of 40 male CFO's are selected. Find the expected value of the sample mean difference.
question a water glass is shaped like a cylinder with height 6in. and diameter 2in. how many times as much water can a
data were collected on gpa and number of faceook friends for students in a small statistics class. some summary
The company will replace any printer that fails during the guarantee period. How long should speedy jet printers be guaranteed if the company wishes to replace no more than 15% of the printers?
Formulate a linear programming model that can be used to determine the amount of funds CCU should allocate to each type of loan in order to maximize the total annual return for the new funds.
Of 346 vending machines tested, 12 are found to be defective. Construct the 98 % confidence interval for the proportion of all defective vending machines.
there are 1000 students in the senior class at a certain high school. the high school offers two advanced placement
What is the probability that the next customer will request extra unleaded gas and fill the tank (A union B)?
1. Suppose a food scientist wanted to compare the "tastiness" of different variations of a cookie recipe. (a) Suggest several ways to quantify (measure) "tastiness", and discuss the advantages and disadvantages of each.
an educator wants to determine whether early exposure to school will affect iq. he enlists the aid of the parents of 12
a researcher wishes to estimate the percentage of adults who support abolishing the penny. what size sample should be
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