Examine the data sets. They show the customer service ratings (1−10) for two teams.
Team A: {8,9,7,8,8,10,8}
Team B: {9,9,7,8,10,10,9}
Click on the link to use the GeoGebra graphing calculator to calculate the standard deviation of the data set.
Round your answer to the nearest tenth, if necessary.
Compare the means, ranges, and standard deviations of the data sets. Then use the drop-down arrows to complete the sentences
The mean rating for Team A is [less than, greater than, the same as] the mean rating for Team B. Therefore, [the ratings for Team A and Team B are the same, on average, the ratings on Team B are higher, on average, the ratings on Team A are higher, on average.]
The range of ratings for Team A is [less than, greater than, the same as] the range ratings for Team B. Therefore, [there is the same difference between the highest and lowest rating for Team A and Team B, there is a greater difference between the highest and lowest rating for Team A than Team B, there is a greater difference the highest and lowest rating for Team B than for Team A].
The standard deviation for the ratings for Team A is [less than, same as, greater than the standard deviation for the ratings for Team B. Therefore, [the ratings for Team A are more spread out from the mean than the ratings for Team B, the ratings for Team B are more spread out from the mean than the ratings for Team A, the ratings for Team A are spread out from the mean the same as the ratings for Team B].
