Question: A high school teacher is interested to compare the average time for students to complete a standardized test for three different classes of students. The
A high school teacher is interested to compare the average time for students to complete a standardized test for three different classes of students.
The teacher collects random data for time to complete the standardized test (in minutes) for students in three different classes and the dataset is provided below.
The teacher is interested to know if the average time to complete the standardized test is statistically the same for three classes of students. Use a significance level of 5%.
The teacher has confirmed that the samples were randomly selected and independent, and the populations have normal distribution and the population variances are equal.
(a) calculate the Test Statistic for this example (round your answer to 2 decimal places)
(b) calculate the P-value for this example (round your answer to 2 decimal places)
"Class A" Class B Class C
111 120 107
75 96 93
109 112 89
101 89 117
102 103 82
81 112 64
103 98 107
87 101 101
88 82 114
83 79 111
81 91 88
91 102 102
92 103 94
90 95 84
93 104 113
90 97 98
79 83 104
93 91 106
77 104 85
98 95 103
83 100 98
98 94 88
88 107 107
101 103 106
86 97 91
Test Statistics = ?
P- Value=?
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