Arectangle foot field including both end zones is 120yards long. the field has area 57,600 square feet. what is width of the field in feet?

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

What does the sign of the slope tell you about a line?

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