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In the past,of all the students enrolled in "Basic Business Statistics" 10% earned A's 20% earned B's,30% earned C's,20% earned D's and the rest either failed or withdrew from the course.Dr Johnson is a new professor teaching "Basic Business Statistics" for the first time this semester.At the conclusion of the semester,in Dr.Johnson's class of 60 students,there were 10 A's,20 B's,20 C's,5 D's and 5 W's or F's.Assume that Dr.Johnson's class constitutes a random sample.Dr Johnson wants to know if there is sufficient evidence to conclude that the grade distribution of his class is different than the historical grade distribution. Calculate the chi-square statistic.
Platinum
A dense, malleable, and highly unreactive metallic element with symbol Pt and atomic number 78, used in jewelry, vehicle emission control devices, and as a catalyst.
Inert
A term used to describe elements or substances that do not readily react with other elements or compounds.
Mitosis
A process in cell division during which the nucleus divides, typically resulting in two new cells with identical genetic material to the original cell.
Replicating
The process of making an exact copy of something, commonly used in contexts involving DNA and cell division.
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