Recreational Time A researcher wishes to see if there is a difference between the mean number of hours per week that a family with no children participates in recreational activities and a family with children participates in recreational activities. She selects two random samples and the data are shown. Use μ1 for the mean number of families with no children. At =α0.10 , is there a difference between the means? Use the critical value method and tables.
X σ n
No children 8.7 2.6 32
Children 10.6 2.9 32