133 The chair of the business department hypothesizes that the final grades in a statistics course are distributed as 30% A's, 40% B's, 20% C's, and 10% D or F's. At the end of the semester, the following numbers of grades were earned in a class with 50 students. Grade A B C D, F Number 14 21 11 4 Calculate the chi-square value.

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter8: Introduction To Functions
Section8.10: Inverse Variation
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The chair of the business department hypothesizes that the final grades in a statistics course
are distributed as 30% A's, 40% B's, 20% C's, and 10% D or F's. At the end of the semester,
the following numbers of grades were earned in a class with 50 students.
B C D, F
21 11 4
Grade
A
Number 14
Calculate the chi-square value.
Transcribed Image Text:S The chair of the business department hypothesizes that the final grades in a statistics course are distributed as 30% A's, 40% B's, 20% C's, and 10% D or F's. At the end of the semester, the following numbers of grades were earned in a class with 50 students. B C D, F 21 11 4 Grade A Number 14 Calculate the chi-square value.
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