The table shows the number of hours spent practicing singing each week in three samples of 10 randomly selected chorus members. # Which statement is most accurate based on the data? A. B. C. Time spent practicing singing each week (hours) Sample 1 4 5 3 2 3 5 4 Sample 2 5 10 9 Sample 3 10 6 8 D. 6 7 5 10 786 9 Choice 5 1 5 Mean = 3.7 Mean = 7.3 Mean = 7.5 6 7 8 8 7 6 A prediction based on the data is reliable, because there are no noticeable differences among the samples. A prediction based on the data is not completely reliable, because the means of samples 2 and 3 are too close together. A prediction based on the data is not completely reliable, because the mean of sample 1 is noticeably lower than the means of the other two samples. A prediction based on the data is reliable, because the means of samples 2 and 3 are very close together.
