Mathematics, 11.03.2021 23:30 RiyaTailz3346
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The table shows the number of practice problems completed in 30 minutes in three samples of 10 randomly selected math students.
Number of practice problems completed in 30 minutes Sample 1 18 15 17 18 13 17 16 16 14 18 Mean = 16.2 Sample 2 21 20 18 20 19 19 20 21 21 20 Mean = 19.9 Sample 3 14 16 18 13 18 16 16 17 19 19 Mean = 16.6 Which statement is most accurate based on the data?
A. A prediction based on the data is reliable, because the means of samples 1 and 3 are very close together.
B. A prediction based on the data is reliable, because there are no noticeable differences among the samples.
C. A prediction based on the data is not completely reliable, because the mean of sample 2 is noticeably higher than the means of the other two samples
D. A prediction based on the data is not completely reliable, because the means of samples 1 and 3 are too close together.β
Answers: 1
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The table shows the number of practice problems completed in 30 minutes in three sample...
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