A professor is interested in how attendance influences grades her class. She goes through her records and determines each student’s final average and the number of days absent. The scores for her sample are given in the table below. Estimate the average final grade for all students in the professor’s class. Provide a point estimate and a 99% confidence interval. Estimate the average number of days all students are absent from the class. Provide a point estimate and a 95% confidence interval.
A professor is interested in how attendance influences grades her class. She goes through her records and determines each student’s final average and the number of days absent. The scores for her sample are given in the table below. Estimate the average final grade for all students in the professor’s class. Provide a point estimate and a 99% confidence interval. Estimate the average number of days all students are absent from the class. Provide a point estimate and a 95% confidence interval.
Chapter9: Sequences, Probability And Counting Theory
Section9.7: Probability
Problem 2SE: What is a sample space?
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A professor is interested in how attendance influences grades her class. She goes through her records and determines each student’s final average and the number of days absent. The scores for her sample are given in the table below.
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- Estimate the average final grade for all students in the professor’s class. Provide a point estimate and a 99% confidence interval.
- Estimate the average number of days all students are absent from the class. Provide a point estimate and a 95% confidence interval.
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Transcribed Image Text:Final
Student
1
Average
80
Days
Absent
1
2
66
3
3
85
2
4
86
2
73
3
6
97
7
8
88
76
1
6
9
62
2
10
94
1
11
92
12
88
1
13
87
14
78
4
15
90
2
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