answer the following
A professor is interested in knowing the
correlation, if any, of students’ scores...
answer the following
A professor is interested in knowing the
correlation, if any, of students’ scores on the
first and second exams given in his class.
Test 1
Test 2
92
86
90
87
89
85
82
90
88
79
92
90
100
92
91
84
Select the correct statistical test; perform the test; report
the results according to the handbook guidelines; explain what the
results mean to the professor.
As part of its freshman orientation process, a college gives a
math placement exam to incoming...
As part of its freshman orientation process, a college gives a
math placement exam to incoming freshmen. The math department is
interested in whether there is a statistically significant
difference in the average exam score for students in different
programs, at a level of α=0.01 . The exam scores for random samples
of science, engineering, humanities, and business majors are shown
in the following table. The math department has confirmed that the
samples were randomly selected and independent, that the...
A business statistics professor gives 100-point exams to two
different sections of business statistics. The scores...
A business statistics professor gives 100-point exams to two
different sections of business statistics. The scores in one
section, Section 001, of the class were 40, 50, 61, 63, 67, 74, 74,
76, 76, 78, 78, 80, 82, 86, 87, 87, 87, 88, 90, 90, 91, 92, 92, 93.
The other class, Section 002, had scores of 67, 67, 68, 75, 75, 76,
79, 79, 80, 80, 80, 83, 86, 87, 87, 88, 89, 89, 90, 90, 90,
91.
Based...
The Test Scores for a Statistics course are given in the Excel
below.
The data (X1,...
The Test Scores for a Statistics course are given in the Excel
below.
The data (X1, X2, X3, X4) are for each student.
X1 = score on exam #1
X2 = score on exam #2
X3 = score on exam #3
X4 = score on final exam
Your professor wants to know if all tests are created equal.
What is the F-Stat?
EXAM1
EXAM2
EXAM3
FINAL
73
80
75
65.86667
93
88
93
80.16667
89
91
90
78
96
98...