1. A study was conducted to evaluate the birth weights of infants based on the smoking status of mothers. The data in the excel spread sheet (in blackboard) lists the birth weights of infants and the smoking status of their mothers. Perform an Analysis of Variance for the data at an alpha=0.01 using Microsoft Excel and state your conclusions.

1. State clearly the Null and the Alternate Hypothesis.
2. From the output, provide the values for Between Sum of Squares, Within Sum of squares, and their respective degrees of freedom, F-statistic Value and the p-value.
3. Provide your conclusion

Smoking StatusBirth Weight of Infants (pounds)

Non Smokers 8.56 8.47 6.39 9.26 7.98 6.84 9.20 7.50

Ex-Smokers. 7.39 8.64 8.54 5.37 9.21 7.80 8.20 8.00

< 1/2 pack/day. 5.97 6.77 7.26 5.74 8.74 6.30 6.80 7.10

>=1/2 pack/day 7.03 5.24 6.14 6.74 6.62 7.37 4.94 6.34