mean number of residents in the retirement community household is less than 27. Accoraing to the Census Bureau, 3.13 people reside in the typical American housenoie. A sample of 25 households in...

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Extracted text: mean number of residents in the retirement community household is less than 27. Accoraing to the Census Bureau, 3.13 people reside in the typical American housenoie. A sample of 25 households in Arizona retirement communities showed the mean no ber of residents per household was 2.86 residents. The standard deviation of u sample was 1.20 residents. At the .05 significance level, is it reasonable to conclude -.. ILiease in selling time? 3.13 persons? -- litalitu magazine