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One year Hank had the lowest ERA (earned-run average, mean number of runs yielded per nine innings pitched) of any male pitcher at his school, with an ERA of 2.79. Also, Jane had the lowest ERA of any female pitcher at the school with an ERA of 2.98. For the males, the mean ERA was 4.753 and the standard deviation was 0.598. For the females, the mean ERA was 4.906 and the standard deviation was 0.951. Find their respective z-scores. Which player had the better year relative to their peers, Hank or Jane? (Note: In general, the lower the ERA, the better the pitcher.)
Hank had an ERA with a z-score of ( )
Jane had an ERA with a z-score of ( )
number of correct answers on a test and test score 4) number of students in a class and number of students of with brown hair
1. In a political discussion group there are 9 Democrats, 10 Republicans and 6 Independents. If one group member is chosen at random to represent the group, what is the probability that they are a Republican?
A shoe salesperson is paid the greater of $600 per week or 11% of sales. At what volume of sales per week will he start to earn more from the commission based compensation?
The manufacturer can produce the lamps at a cost of $4 per lamp. At what price should the manufacturer sell the lamps to generate the greatest possible profit?
The largest meteorite is the world is the Hoba West, located in Namibia. Its weight is 3 times the weight of the Armanty meteorite, loated in Outer Mongolia. If the sum of their weights is 88 tons, find the weight of each.
Create a project management plan for your client that outlines how you will implement the HRIS in Gladwell Grocery Stores. Explain the various steps that should be included to ensure that the implementation runs smoothly.
Nielsen media research provides two measures of the television viewing audience: a television program rating, which is the percentage of households with televisions watching a program and a television program share
Given the nature of the data sources, describe why you think this discrepancy exists. Be sure to note with reasons whether your overall results are or are not what you initially expected.
Consider a flea of mass 4.5×10-4 at 1.0 m/s midway through its jump. What is its de Broglie wavelength?
Describe two real-life examples where exponents are used either at home or on the job. For ideas, look in the textbook or online. Look around at home and at work to see what strikes you as being similar in your own life. What examples do you see?
Using set identities (in particular, using only equalities) simplify the following expressions - (i) A \ (A \ B), - (ii) (A ∩ B) \ (A ∩ Bc).
find parametric equations for the tangent line to the curve with the given parametric equations, x=2cost, y=2sint, z=4cos2t, at the specified point (sqrt(3),1,2)
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