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From past experience, a professor believes that the average score on a midterm exam is 75. A sample of 20 students' exam scores is as follows: 50 74 65 71 69 75 76 70 70 68 63 72 70 71 81 76 73 72 71 80 Can the professor conclude that the students' average differs from 75? Use a = 0.10. NOTE: Ex=1417 and Ex =101213

From past experience, a professor believes that the average score on a midterm exam is 75. A sample of 20 students' exam scores is as follows: 50 74 65 71 69 75 76 70 70 68 63 72 70 71 81 76 73 72 71 80 Can the professor conclude that the students' average differs from 75? Use a = 0.10. NOTE: Ex=1417 and Ex =101213

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 3E
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From past experience, a professor believes that the average score on a midterm exam is 75. A sample of 20 students' exam scores is as follows: 50 65 71 69 75 76 70 70 68 63 74 72 70 71 81 76 73 72 71 80 Can the professor conclude that the students' average differs from 75? Use a = 0.10. NOTE: x=1417 and x = 101213
Transcribed Image Text:From past experience, a professor believes that the average score on a midterm exam is 75. A sample of 20 students' exam scores is as follows: 50 65 71 69 75 76 70 70 68 63 74 72 70 71 81 76 73 72 71 80 Can the professor conclude that the students' average differs from 75? Use a = 0.10. NOTE: x=1417 and x = 101213
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