The amount of time, in hours, babies spent sleeping in two different nurseries is shown Nursery 1 A titled Nursery 1. A number line going from 0.5 to 2.5 in increments of 0.5 is labeled Hours spent napping. There are 0 dots above 0.5, 4 dots above 1, 5 above 1.5, 2 above 2, 1 above 2.5. Nursery 2 A dot plot titled Nursery 2. A number line going from 0.5 to 2.5 in increments of 0.5 is labeled Hours spent napping. There are 0 dots above 0.5, 3 above 1, 4 above 1.5, 3 above 2, and 2 above 2.5. Which describes an inference that Mrs. Hardison might make after comparing the means of the two data sets?
Answers
Given : The amount of time, in hours, babies spent sleeping in two different nurseries is Given
To find : Which nursery have more mean
Solution:
Nursery 1
Hours Slept number of Babies hrs
0.5 0 0
1 4 4
1.5 5 7.5
2 2 4
2.5 1 2.5
Total 12 18
Mean Hrs Slept = 18/12 = 1.5
Nursery 2
Hours Slept number of Babies hrs
0.5 0 0
1 3 3
1.5 4 6
2 3 6
2.5 2 5
Total 12 20
Mean Hrs Slept = 20/12 = 1.67
Mean of Hrs slept for Nursery B is more than Nursery A
Mrs. Hardison inference that Nuersery B is better
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